Artykuły w czasopismach na temat „Sex differences in preschool behaviour”

This paper is concerned with the extent to which "traditionality" of parents' attitudes towards the other sex are related to sex-bias in expectations regarding children and to involvement in sex-typical household tasks. We also examine each of these in relation to how parents see themselves along dimensions of "masculinity" (instrumental traits) and "femininity" (expressive traits). To obtain a wide spectrum of cultural values, comparable data were collected on parents of preschool-aged children (n = 161) in Cambridge (England) and Budapest (Hungary). Parents' personalities, attitudes, and behaviour were assessed by self-report questionnaires. Parents with more traditional views on male-female adult relations had more sex-biased expectations of their children. Furthermore, with the exception of Budapest mothers, parents who had more traditional attitudes and expectations were more gender-stereotyped in their behaviour. Mothers' sex-role behaviour in Budapest was related to their husbands' attitudes. Comparing parents according to sex and location the following results emerge: fathers were more sex-biased in parenting expectations and more traditional in their attitudes to adult relations than mothers. Sex-typical household and child-care duties were more likely to be performed by the parent of the traditionally "appropriate" sex. Budapest parents were more sex-biased in their attitudes than Cambridge parents, but less gender-typed in their role-sharing behaviour. This difference in role-sharing was related to maternal employment. These results further support the contention that the various gender-related phenomena-traits, attitudes, values, interests, preferences, and behaviour- are multifactorial. As a considerable variation has been found in parents' gender-related personality, behaviour, and attitudes, it remains to be seen whether this variation is reflected in any way in the behaviour of their preschool daughters and sons.

In Germany and Italy 16 children (8 in each country) were observed during their first year in preschool. An average of 50 five-minutes samples in Germany and 38 in Italy were analysed with regard to certain play and behaviour categories. The comparison revealed differences in 'looking around' and 'body contact' (both more in Italy), 'talking to somebody', 'automanipulation' (both more in Germany), and 'the number of children playing together' (German children preferred to play with more than one child, while Italian children played more often in dyads or alone). In both cultures children preferred the same age children for social play and the same sex children for parallel play and showed a decline of 'interactions with the teacher' and 'looking around' over the year. Sex differences were found in both cultures for 'object conffict'.

There is a small, but growing, body of research investigating peer-victimisation between preschoolers, an age which has been identified as being important both theoretically and practically for the development of interventions. This study compares aggressive and defending behaviour and victim status of preschoolers in three European countries; England, Spain and Italy. The results provide further confirmation that some children behave aggressively towards their peers during preschool in each of the countries studied. There are similarities between preschool children involved in peer-victimisation in the three countries in terms of the roles taken, sex differences and the types of aggressive behaviours used and experienced by the children. There were differences in the profiles of children identified as taking the roles by teachers and peers. Overall, it was found that those children identified by peers or teachers as being aggressive were more likely to be male, rated as physically strong and more likely to be rejected by classmates. Also, in general, the targets of peer-victimisation differed depending on the reporter. Peer-nominated victims were not identifiable in terms of gender, popularity or physical strength. Teacher-nominated victims were more likely to be socially rejected and physically weak. There are several subtle differences between the countries which deserve further investigation. The findings are discussed in relation to furthering our understanding of the development of peer-victimisation in preschools and the need for interventions which address this phenomenon.

<p>The article represents the research, analysed the reviewing of defensive mechanisms and coping strategies in the context of the mental health of pre-school children of different gender. The results obtained through study point to differentiation of psychological defence and coping strategies mechanisms based on gender and the condition of mental health. It is revealed that mentally healthy pre-school age children prefer to use effective and socially upheld coping-strategies, which reduce the pressure through socially upheld behaviour patterns (e.g., through the decent “children’s activity” – play, walk and etc.). Mentally healthy girls more often focus on overcome the difficulties within themselves. Boys, who have emotional symptoms, as usual prefer the destructive emotional expression strategy, that lets to ease the tension. Boys with the low level of anxiety are oriented to the passive distraction, while girls focus on the social contacts. Received results can be used for development of psychological prevention of mental health offences programmes</p>

Sex differences in restricted and repetitive behaviors (RRBs) in individuals with Autism Spectrum Disorder (ASD) have been explored with mixed findings. We aimed to investigate sex differences in RRBs through a specific measure—i.e., the Repetitive Behavior Scale Revised (RBS-R)—in a sample of preschool-age and school-age children with ASD. Additionally, we evaluated if RRBs were differently related to adaptive functioning within the male and the female age groups. A sample of 210 ASD individuals (3–18 years; 145 males, 65 females) underwent an in-depth assessment including a cognitive, adaptive functioning evaluation (i.e., the Adaptive Behavior Assessment System, Second Edition (ABAS-II)) and RRBs assessment (i.e., RBS-R). No significant sex differences on the RBS-R total score or any RBS-R subscale emerged. Within the group of older participants, RRBs were negatively associated with all adaptive skill domains independently from sex and age. Our results suggest a lack of sex differences in RRBs in our sample. Additionally, our findings highlight the possible negative impact of RRBs on adaptive skills in older individuals with autism, emphasizing the need for autistic individuals of both sexes to undergo an early intervention targeting RRBs, in order to improve their adaptive skills.

In this paper we present the results of research on a sample of 101 children. All children attending kindergarten "Sunčica" that exists within the Public Institution for pre-school education "Our child" Tuzla. Our goal was to investigate and determine which behavior, prosocial or aggressive, is more manifested by pre-school children. Also, we wanted to determine whether there is a significant difference in the expression of aggressive and prosocial behavior of children in relation to their age and gender. The results we obtained showed that preschool children manifested more prosocial than aggressive behavior, that there are significant differences in the expression of prosocial and aggressive behavior of children in relation to sex, and that there are significant differences between certain age groups of children in the context of prosocial behavior while among some age groups in the context of prosocial behavior and among all age groups in context of aggressive behavior there were no statistically significant differences.

Sex differences in activities of preschoolers were assessed during free-play time from observation of the behavior of 31 children (23 girls, 8 boys; M = 5 yr.). These differences were noted for the time girls and boys spent in the activities considered, boys spending more time in rough-and-tumble play and in agonistic activities and girls in organised games such as games with rules and role-play in addition to affiliative activities. Sex differences could be detected also in the distribution of time among various activities of the children during free-play in the three terms of the school year under consideration. From a developmental perspective, gender plays a fundamental role in the formation of play-networks in the first peer encounters. These peer groups, sexually segregated, are structuring and organizing during the academic year so “distinctive cultures” for boys and girls, besides consolidating this segregation facilitate the acquisition of advantageous social skill for later life.

Links between both temperament and parenting, and children's sociable and aggressive behaviour with peers (physical and relational), were examined. The research was undertaken in two Western cultures (the United States and Australia) assumed to be similar in socialisation practices and emphases. The moderating effects of parent sex and child sex were also examined. Parents completed questionnaires on parenting styles and child temperament. Preschool teachers rated children's aggressive and sociable behaviour. US children were rated higher on both types of aggression by teachers and on sociability, activity, and emotionally by parents. Girls were rated as more relationally aggressive and more prosocial than boys, with boys higher on physical aggression. Mothers were more authoritative, with fathers more authoritarian, although the latter was mainly a result obtained from US parents. In both the United States and Australia, temperament consistently predicted child sociable and aggressive behaviours, with some evidence of fathers' authoritarian parenting also contributing. The results show the relevance for parenting and child development of gender, and the importance of culture differences even between two Western and individualist countries.

In this study, researchers wished to ascertain whether there were age (three- and four-year old), sibling (with or without older siblings), and sex (male and female) differences in the use of relational aggression in preschool students as rated by peers and teachers. In order to answer this research question, two 2 × 2 × 2 factorial ANOVA procedures with the relational aggression composite score as the dependent variable on the PSBS-P and PSBS-T were used for peer and teacher assessment, respectively, of relational aggression. Results revealed that in the peer ratings of preschool students' relationally aggressive behavior, there was an disordinal age by sibling interaction, in which four-year-old children with siblings were significantly more likely to be rated by their peers as using relational aggression than three-year-old children without siblings. In the teacher ratings of preschool students' relationally aggressive behavior, a main effect for age was observed. Teachers rated four-year old children as evidencing significantly higher levels of relational aggression as compared to three-year-olds. No sex differences were observed in the use of relational aggression either at age three or age four in this sample. Implications for these findings are presented.

The aim of this study is to categorize the differential diagnostic criteria of communication skills for preschool children with shy behaviour and children with autism within the speech therapy intervention process. For the current study during the speech therapy intervention process 23 preschool children from 3-5 years old were studied who had communication problems and no speech. To establish the differential diagnostic criteria of communication skills for preschool children with shy behaviour and children with autism observation and complex speech therapy methods were used while combining practical and verbal/non-verbal approaches. The quantitative research methodology was used to generalize and conduct a comparative analysis of the results, in order to emphasize the behavioural characteristics and to outline the existing differences between the means of communication of these children. The analysis of the research results made it possible to compile a comparative description of communication features and indicators of the quality of communication of children with shy behaviour and children with autism. Communication and behavioural problems which are typical for children with shy behaviour and children with autism were clarified and differentiated, as well as the criteria for differential diagnosis of speech and communication features of children with shy behaviour has been established, and speech therapy intervention rules have been developed to overcome those problems.

Early adversity is associated with both internalizing and externalizing problems among children, and effects of adversity on dimensions of child temperament may underlie these links. However, very little is known about the role of child sex in these processes. The current study examined whether there are indirect effects of early adversity on behavior problems through dimensions of child temperament and whether these indirect effects vary across child sex. Participants in this multimethod (parent-report survey, semistructured interview, child protection records) study included 274 preschool-aged children ( M age = 50.86 months; 52% with documented case of moderate to severe maltreatment) and their primary caregivers assessed at two time points spaced 6 months apart. Results of multigroup path analyses revealed that while anger mediated associations between lifetime stress and behavior problems for the full sample, inhibitory control and appropriate attentional allocation were significant intermediary mechanisms of lifetime stress for boys, but not for girls. Inhibitory control mediated associations between maltreatment and behavior problems for the full sample, but appropriate attentional allocation mediated these associations for boys only. Results suggest that early adversity influences child behavior problems through child temperament, particularly for boys. This work supports the perspective that temperament is influenced by characteristics of the early rearing environment, and the indirect effects of adversity on behavior problems through temperament vary across sex.

Abstract Sex-typed play behavior shows large sex differences and seems to be affected by prenatal sex hormones. For example, a smaller, more male-typical ratio between the second and fourth digit length (2D:4D), a proposed marker for prenatal testosterone exposure, has been shown to be related to sex-typed play preference in childhood. Nevertheless, it is still being debated whether 2D:4D displays a stable sex difference throughout childhood, as there are few longitudinal studies. In the present study, children’s 2D:4D was measured on both hands on four occasions from early infancy to early childhood (T1: 5 months, T2: 9 months, T3: 20 months, and T4: 40 months) providing the rare possibility to test the temporal stability of the sex difference. Parents completed the Preschool Activities Inventory at T4 and reported on the number of older brothers and sisters as a measure for socialization influences. Parents described boys as playing more masculine and less feminine than girls. Boys had smaller 2D:4D than girls at all measurements (T1–T4) and on both hands (right/left). Nevertheless, 2D:4D increased significantly from T3 to T4 in both sexes. Girls, but not boys, who were described as playing more masculine and less feminine had more masculine 2D:4D ratios at T1–T4 on both hands (except for right 2D:4D at T2 and T3) and had more older brothers and fewer older sisters. These data underline the stability of the sex difference in 2D:4D and show the importance of both biological and social influences on sex-typed play behavior.

Although research has traditionally suggested that girls are more cooperative than boys and that younger children are less competitive than older children, Knight and Kagan and others have suggested that individualism is a critical variable in regard to sex and age differences that is often confounded with cooperation and competition. To test this hypothesis, two measures of cooperative behavior were administered to 30 4- and 5-yr.-old children. When interpreted dichotomously (cooperative vs competitive), the results support traditional findings: girls were more cooperative than boys on one measure while younger children were more cooperative than older children on both measures. When interpreted trichotomously (cooperative/individualistic/competitive) partial support emerged for the view that girls are more individualistic than boys.

A microcomputer was inserted into two preschool classrooms—one large and one small—to examine the effects on children's free-play choices and social interactions. Sex differences were also examined. In both classrooms, the introduction of the microcomputer initially disrupted free-play activity patterns; over time, however, most free-play areas returned to baseline levels. Sex differences were apparent in both classrooms. In the large classroom, boys spent significantly more time at the microcomputer than girls. In the small classroom, there was a trend for girls to spend more time at the microcomputer than boys. Social interactions at the microcomputer were similar to interactions in other play areas of the two classrooms. Higher levels of positive social behaviors at the microcomputer compared to other play areas were not found in either classroom.

The aim of the present study was to analyze free exploration of an unfamiliar, novel object in a semi-natural environment in 189 preschool children aged 3 to 7 years. The study used a purpose-built, novel, and complex stimulus object. Each child was shown the complex object lying on the floor and asked to explore it for 15 minutes. The child's behavior was video recorded. Age-dependent differences were found in the children's exploratory activity. No sex differences were found. Cluster analysis showed four main behavioral patterns that differed in their qualitative and quantitative parameters. Cluster membership was mainly age-dependent and not sex-specific. The results showed individual and developmental differences among the preschoolers with respect to their exploratory activity. This should be taken into account by school psychologists and teachers when designing the educational tasks and play situations.

AbstractArecent large-scale study of Finnish adolescent twins (Pulkkinen et al., 2003) reported that individuals from opposite-sex twin pairs were more socially adaptive than individuals from same-sex pairs or singletons. This finding raised questions about the social learning effects of being an opposite-sex twin. The current article predicted on the basis of this finding, and evidence from singleton populations, that having an opposite-sex twin would yield social advantage. It sought to examine the social competencies of opposite-sex twins and compare them with same-sex twins and singletons. The study focused on the preschool years (age 3 to 6), a period in which the majority of children encounter their first large group, nonfamilial social experiences. The study obtained reports from parents and teachers of children aged 3 to 6 years: 72 children (36 pairs) who were dizygotic opposite-sex twins (DZOS), 50 children (25 pairs) who were dizygotic same-sex twins (DZSS), and 85 singletons of the same age and sex as the twins, who had at least one sibling. Reports were made using standardized measures of social competencies, behavior problems, language development and friendships. The main effects found were of differences in social competency between twins and singletons. Twins had lower social competency scores. No differences between same-sex and opposite-sex twins were found. The findings did not support the hypothesis of social advantage for opposite-sex twins in early childhood.

Objective: to establish the prevalence and associations of peer aggression as manifested in preschool children, in community-based populations and to study links with DSM-IV externalizing diagnoses. Method: Subjects were 1,104 children, 3-to-5-year-olds attending rural and urban pre-schools classes. Teachers completed the Peer Conflict Scale (PCS) to inform about direct physical and verbal aggression, object aggression and symbolic aggression and the questionnaire on psychopathology ECI-4. Results: 6.6% (n = 73) had at least one positive item on the PCS. This percentage dropped to 2.6% (n = 29) if we take into account a minimum of three positive items. Physical direct aggression was the more prevalent type of aggressive behavior, followed by verbal aggression, object aggression and symbolic aggression. Significant differences by gender and age were found. Peer aggression was associated with male gender from three years of age. Physical, object and verbal aggressive behavior was linked with externalizing disorders. This association was very strong with oppositional disorder. Conclusions: The present research with a Spanish population confirms the existence of peer aggression in preschoolers and the gender differences. Our chief contribution is about the age of emergence of sex differences and gender differences in different types of peer aggression.

Externalizing behaviors observed in early childhood have been found to be stable, particularly for boys, but little research has investigated the antecedents of these behaviors, especially how the antecedents may differentially relate to externalizing behaviors in boys and girls. The goal of this study was to explore predictors of externalizing behaviors concurrently in toddlerhood and longitudinally to preschool. When children ( n = 140) were 30–36 months old, maternal supportive and controlling behaviors were observed, and children’s effortful control and anger were measured through observations and maternal report. Mothers reported on children’s externalizing behavior during toddlerhood and approximately 2 years later ( n = 116). Although mean level differences were not found between boys and girls, effortful control was differentially related to externalizing behaviors in toddlerhood. Higher levels of effortful control were associated with less externalizing behaviors for boys but not for girls. Additionally, anger was positively related to externalizing behaviors. Few associations were found for maternal behaviors, which emphasizes the importance of child characteristics in externalizing behaviors. Our findings emphasize how future research should continue to examine relations of early antecedents to concurrent and later externalizing behaviors even if mean level sex differences are not found.

PurposeThis article reports findings from an investigation of the personality traits and resilience of a sample of preschool principals in Greece. It parallels an earlier investigation of primary school principals and compares the findings. As before, the investigation was designed to search for relationships between respondents’ personality characteristics and resilience strengths, and also for differences associated with sex, age, and years of service in the principalship. Once again, the “Big-Five Inventory” and the “Leadership Resilience Profile” were used. These outcomes, together with the demographics of the sample, suggested that Greek preschool principals may have unique dispositions, and therefore, may have unique professional-development needs and leadership preferences.Design/methodology/approachA quantitative survey was used to gather the data from a sample of 100 pre school teachers. The “Big Five Inventory” and the “Leadership Resilience Profile” were the instruments used.FindingsIt was found that the sample’s personality characteristics and resilience strengths differed somewhat from norms reported in the literature. Furthermore, the findings concerning relationships between resilience and personality did not align clearly with other researchers’ findings.Originality/valueResilience and personality characteristics as determinants of successful school leadership.

This study investigated the relationship between original thinking and socioemotional characteristics of 40 preschoolers, ranging in age from 44 to 68 mo. ( M = 56.2 mo.). Socioemotional behavior was assessed by teachers on two ratings, the Kohn Social Competency and the Child's Behavior Traits scales. Creative potential was assessed by the Multidimensional Stimulus Fluency Measure which measures ideational fluency. Contrary to expectations, no statistically significant differences in psychosocial adjustment were found between the more and less creative preschoolers on a median split. A significant effect for sex was detected on six of seven socioemotional variables examined, with girls scoring higher than boys on over-all adjustment. Similarly, more positive attributes of preschool girls are indicated in areas of functioning that traditionally have been reported to be characteristic of boys.

The research aims were to examine the relationships between parent and child digital media use and to describe the characteristics of the top and bottom quartiles of child digital media use in meeting the 24 h integrated guidelines for sleep, physical activity, and sedentary behaviour. Parent-reported on- and off-screen habits and quality of life of children were collected from 1481 parents of preschool children aged 2–5 years in 2019. Significant relationships were detected between parent and child digital media use (weekday, r = 0.274; weekend, r = 0.421, p < 0.05) with no sex difference in daily child digital media use (p > 0.05). Age of first exposure to fixed screens, daily digital media use, and physical play durations were significantly different between heavy (child-TQ) and light (child-BQ) child users of digital media (p < 0.05). Parental perceived importance of child digital media use and parental awareness and practice of guidelines for child digital media use differed significantly between parents of child-TQs and parents of child-BQs (p < 0.05). The number of 24 h movement guidelines met between child-TQs and child-BQs differed (p < 0.05). Parents voiced serious concerns for child digital media use, including addiction (75–76%), poor eyesight (73%), access to inappropriate content (73–74%), a lack of parent–child interaction (65%), poor sleep (49–55%), and a lack of physical activity (55–59%), but these findings did not translate to parental enforcement of the guidelines. Parent education on how to get the best digital media use outcomes for preschool children is recommended.

Measurement invariance (metric/scalar) of oppositional defiant disorder (ODD) dimensions (negative affect, oppositional behavior, and antagonistic behavior) across sex and informants is tested. Parents and teachers of 622 preschool children from the general population answered a dimensional measure of ODD. ODD dimensions function similarly in boys and girls. Some differences were found by informant, indicating that the equivalence of the ratings of parents and teachers is not complete and that given the same underlying level of the latent trait, some parents’ item scores were higher than those of teachers. Metric invariance was complete but scalar invariance was not attained. The results contribute evidence on the conceptualization of ODD as a source-specific disorder. The simultaneous use of ODD dimensions reported by parents and teachers must be considered in the context of a lack of complete measurement invariance, which implies that comparisons of observed means from parents and teachers are not readily interpretable.

This study provides data on the usefulness of the Spanish version of the Social and Communication Disorders Checklist (SCDC; Skuse et al., 1997 ), in terms of the validity and reliability of derived scores. Data were obtained from parents’ interviews and parents’ and teachers’ questionnaires that measured different psychological variables from a community sample of 579 (291 boys and 288 girls), 5-year-old children. These children were tested to assess their intellectual capacity. Confirmatory factor analyses yield a one-dimensional structure invariant across sex within each informant (parents or teachers), with negligible latent mean differences between boys and girls for both informants (parents-teachers). The internal consistency was satisfactory (alpha values ≥ .85 for teacher version and ≥ .75 for parent version). SCDC scores correlated with specific scales related to developmental problems, aggressive behavior, executive functioning, and uncaring behavior toward others. SCDC scores were unrelated to intelligence quotient, whereas SCDC scores were associated with the presence of disruptive disorders, measured with diagnostic interview. Results provide evidence on reliability and validity of SCDC scores, which is potentially a useful measure for the study of social cognition and its relationship with preschool adjustment.

This article describes the preliminary findings in the Basque Country of a project shared by four European countries to teach a second language or a foreign language to preschool and school-age children. The method used to teach the foreign language – in this case, the third language (English) – is based on the use of dramatized formats (Taeschner, 1992). Here, we examine (1) the level of proficiency attained by the experimental groups (50 pupils) at the end of the first year and at the end of the second year of working with the method and (2) the level of proficiency attained by the experimental groups by the end of the second year compared to that attained by the control groups (20 pupils) working with a different method. Other variables are also considered: specific behavior types (disruptive, withdrawn), intelligence, sex, language achievement, and sociocultural background. The pupils were tested at the beginning of the project, at the end of the first year, and at the end of the second year. The linguistic data were transcribed and analyzed with the CLAN programs of CHILDES (MacWhinney, 1995), and various statistical analyses were carried out. The results indicate significant differences in language proficiency in favor of the experimental group as well as some interesting information about children with specific behaviors learning with this method.

AbstractChildren with prenatal tobacco exposure (PTE) exhibit early self-regulatory impairments, reflecting a life-course persistent propensity toward behavioral disinhibition. Previously, we demonstrated the protective role of parental responsiveness for reducing the risk of exposure-related disruptive behavior in adolescence. Here, we expanded this line of inquiry, examining whether responsiveness moderates the relation of PTE to a broader set of behavioral disinhibition features in early childhood and testing alternative diathesis-stress versus differential susceptibility explanatory models. PTE was assessed prospectively using interviews and bioassays in the Midwestern Infant Development Study (MIDS). Mother-child dyads (N = 276) were re-assessed at approximately 5 years of age in a preschool follow-up. We quantified maternal responsiveness and child behavioral disinhibition using a combination of directly observed activities in the lab and developmentally sensitive questionnaires. Results supported a diathesis-stress pattern. Children with PTE and less responsive mothers showed increased disruptive behavior and lower effortful control compared with children without PTE. In contrast, exposed children with more responsive mothers had self-regulatory profiles similar to their non-exposed peers. We did not observe sex differences. Findings provide greater specification of the protective role of maternal responsiveness for self-regulation in children with PTE and help clarify mechanisms that may underscore trajectories of exposure-related behavioral disinhibition.

Purpose To explore the association between the physical health (PH) and physical activity behavior (PAB) of children aged 3 to 6 years, and to provide a basis for the scientific planning of children’s physical activity behavior in kindergarten. Methods A total of 18041 children in China aged 3 to 6 years were selected as the research subject. The PH monitoring indicators were measured according to "The National Physical Fitness Measurement Standards Manual" (Preschool Children Version) (NPFMSM), and PAB was reported by teachers. The chi-square test was used to test for differences in PH and PAB across groups, the percentile method was used to rank PAB, correlation analysis was used to analyze the association between components of PH and PAB, and multiple linear regression was used to determine the independent association between PAB and PH. Results Participants in this study exhibited poor PH status, and the detection rates of failure were 16.4% for boys and 16.8% for girls, and showed a decreasing trend with increasing age. The grade difference and sex difference in PH components were statistically significant (P<0.01). PAB changes to static activities with increasing age, mainly to static indoor physical activities (SIPAs). The regression effects of the total duration of physical activity (TDPA) and dynamic physical activity (DPA) on PH score and physical fitness (PF) score were significant (P < 0.01) but not statistically significant with static physical activity (SPA) (P>0.05). Dynamic outdoor physical activity (DOPA) is the core factor affecting children’s PH, and is significantly positively correlated with the components of PH. Conclusion PAB in kindergarten can improve children’s PH, and reasonable planning of PAB in kindergarten has a targeted effect on PH promotion.

The preschool years are a sensitive period for the development of food preferences that will affect physical growth and life-long health. The promotion of healthy eating and nutritional status was achieved by adapting the US National Aeronautics and Space Administration (NASA) Mission X (MX) Program among young children in South Korea. The intervention program was delivered by nutritional experts and class teachers over 10 weeks. Children from 37 school classes (n = 534) from 7 daycares and kindergartens were randomized into a control group (CG, n = 280) and an intervention group (IG, n = 254). Parents were surveyed for their children’s characteristics and nutrition quotient (NQ) at baseline and at the 10-week follow-up. At baseline, 18.8% (boys: 18.9%; girls: 18.8%) of the subjects were overweight or obese (body mass index ≥ 85th percentile). After the intervention, the mean differences in various anthropometric measures did not differ significantly between the groups in a linear regression model adjusted for age, sex, and type of school. The NQ grades were significantly higher in the IG than the CG after the intervention (p = 0.000). In summary, the 10-week South Korean MX program improved the eating behaviors and nutrition status of young children. A further multisector prevention program is needed to prevent childhood obesity in young children.

Establishing appropriate physical activity and sedentary behaviours during early childhood is important to ensure children accrue the many associated health benefits. While physical activity levels have been reported as low within early learning programs, little research has explored the physical activity and sedentary time of Canadian preschoolers classified as overweight within these facilities. The purpose of this study was to compare objectively measured physical activity and sedentary time among preschoolers classified as overweight and nonoverweight in early learning programs. Direct assessment of physical activity and sedentary time of 216 preschool-aged children was collected via Actical accelerometers during early learning hours, while body mass index percentile was calculated based on preschoolers’ objectively measured height and weight. Results of three 3-way ANOVAs suggest that rates of moderate to vigorous physical activity, total physical activity, and sedentary time (p > 0.05) did not significantly differ based on weight status, sex, and type of early learning facility. This study is one of few that has examined differences in overweight and nonoverweight preschoolers’ sedentary time, and adds to the limited research exploring physical activity levels among overweight and nonoverweight preschoolers during early learning hours. Given the high rates of sedentary time reported, programming within early learning facilities is necessary to support preschoolers, regardless of weight status, to achieve increased physical activity levels and decreased sedentary time.

Mexico has one of the highest overweight and obesity rates in the world. Our objective is to describe the tendency of overweight and obesity by sex, health service affiliation, and socioeconomic tertile (T1,2,3), and to give examples of public policies derived from the results of the Mexican National Health and Nutrition Surveys (ENSANUT). Data come from the 2006, 2012, and 2016 ENSANUTs, which are probabilistic surveys that allow us to make inferences at the national level, on urban and rural strata and regions; their coverage includes all the population age groups. We assessed overweight and obesity (OW + O) in all population groups. The prevalence of OW + O in preschool children was lower in T1 in all the surveys, and shows an increase by year of survey, according to the health service affiliation. In school-age women, prevalence increased over the 10 years of evaluation, in spite of the high prevalence in both genders in T3. Adolescent behavior is similar and, in adults, the prevalence of OW + O shows an increase by year of survey, gender, and affiliation, with the differences not explained by socioeconomic tertile. In conclusion, the ENSANUT series represents a surveillance system that allow us to observe the changes in overweight and obesity prevalence over the time, showing a high prevalence of OW + O in the population, and has contributed to public policy enhancement.

AbstractPhysical activity tends to be lower in school-age children with congenital heart disease than in healthy controls. To the best of our knowledge, objectively measured physical activity levels of preschool-age children with congenital heart disease have not been studied. Methods: A total of 10 children with either coarctation of the aorta (n=6; age 3.8±0.9) or tetralogy of Fallot (n=4, age 4.3±0.9) were recruited from the cardiology unit of McMaster Children’s Hospital. Height (103.7±8.2 cm) and weight (17.3±2.7 kg) measurements were recorded, and physical activity was determined using accelerometry over 7 consecutive days. Patients were compared with age-, sex-, and season of data acquisition-matched controls. Parents completed a questionnaire regarding the child’s physical activity and sedentary behaviours. Results: Patients spent on average 219.4±39.9 minutes engaged in total physical activity per day at the following intensities: light, 147.5±22.3; moderate, 44.0±11.8; moderate-to-vigorous, 71.9±22.6; and vigorous, 27.9±11.7. No significant differences were observed between patients and controls for total physical activity (p=0.80) or any of the intensities (p=0.71, 0.46, 0.43, and 0.45, respectively). Only 40% of patients and controls met the new Canadian Physical Activity Guidelines for the Early Years of at least 180 minutes of physical activity at any intensity every day. Of the patients’ parents, 90% believed that their child was as active, if not more active, than his/her siblings, and 80% of parents reported their child spending 1–3 hours in screen time activities daily. Conclusion: Children aged 3–5 years old with congenital heart disease have comparable physical activity levels to age-, sex-, and season-matched controls, and many do not meet Canadian Physical Activity Guidelines.

Abstract Background The etiology and pathophysiology of childhood mental health are poorly understood. Early childhood irritability is a transdiagnostic marker that portends significant risk for subsequent mental health problems. Robust evidence demonstrates irritability can be quantified early in infancy. The early life microbiome is implicated in defining health trajectories including neurodevelopment. In contrast to the gut microbiome, however, a relationship between the infant nasal microbiome and early childhood irritability remains undefined. We sought to investigate associations between the nasal microbiota of infants &lt;60 days of age and early childhood irritability. Method This case-control study included infants with archived respiratory nasal samples collected for routine clinical care at ≤60 days of age from an emergency department visit (1/2016-5/2019). Parents completed an online survey when children were 14-42 months of age that included questions about medical history, development, and irritability (Multidimensional Assessment of Preschool Disruptive Behavior, MAP-DB). The upper quartile of the MAP-DB Temper Loss Score was classified as high dysregulation. Additional clinical data were collected from the electronic health record. DNA extracted from archived viral media specimens were subjected to 16S rRNA gene (V3-V4 region) next generation sequencing (NGS). Ecological diversity and differential taxon analysis were performed. Results Seventy-two children were initially included, with 16 categorized as high dysregulation. The median age at nasal sample collection was 30 days (IQR 14-44), and age at parent survey was 28 months (IQR 19-31). Fifty-weight percent of the cohort was white, 6% Black, 6% Asian, 20% other, and 25% identified as Lantine ethnicity. The infants were 49% female sex, 77% were born by vaginal delivery, and 43% had a virus identified at time of nasal sample. After removal of extraction/PCR contaminants, taxa present only or at higher levels in media, and samples with &lt;80 sequences, the final microbiota comparison dataset was n=33 children, 7 with high dysregulation. Alpha-diversity (Shannon index) was lower in the high dysregulation group (p=0.0031 pre-background taxa removal, p=0.1288 post-correction, Figure 1A-B). Of the 18 taxa that were compared, Haemophilus, Streptococcus, Staphylococcus, and Gardnerella were significantly less abundant in the high dysregulation group (false discovery corrected significance q&lt;0.005, Figure 1C). Parasutterella was more abundant in a subset of the high dysregulation group. Conclusion Differences in the nasal microbiota of infants, decreased diversity and abundance of certain respiratory bacteria, are associated with early childhood irritability, a marker of mental health risk. Further study may provide mechanistic insights and potentially guide new risk assessment or treatment options.

Background Research on sibling death in a pediatric/neonatal intensive care unit is limited, despite many qualitative differences from deaths at home or in hospitals’ general care areas and has overlooked cultural differences. Objectives To describe parents’ reports of children’s responses to a sibling’s death in a neonatal or pediatric intensive care unit via qualitative interviews at 7 months after the death. Methods English-speaking (n = 19) and Spanish-speaking (n = 8) parents of 24 deceased infants/children described responses of their 44 surviving children: 10 preschool, 19 school-age, and 15 adolescent. Parents’ race/ethnicity was 48% black, 37% Hispanic, 15% white. Ten siblings died in the neonatal unit and 14 in the pediatric intensive care unit. Semistructured interviews in parents’ homes were audio recorded, transcribed verbatim, and analyzed with content analysis. Results Six themes about surviving children emerged. Changed behaviors were reported by parents of school-age children and adolescents. Not understand what was going on was reported primarily by parents of preschoolers. Numbers of comments in the 4 remaining themes are as follows: maintaining a connection (n = 9), not having enough time with their siblings before death and/or to say goodbye (n = 6), believing the sibling is in a good place (n = 6), not believing the sibling would die (n = 4). Comments about girls and boys were similar. White parents made few comments about their children compared with black and Hispanic parents. The pattern of comments differed by whether the sibling died in the neonatal or the pediatric intensive care unit. Conclusions Children’s responses following a sibling’s death vary with the child’s sex, parents’ race/ethnicity, and the unit where the sibling died. Children, regardless of age, recognized their parents’ grief and tried to comfort them.

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This article presents the findings of a research study examining the impact of creative puppetry activities on aggressive behaviour in preschool children. The aim of creative drama was to allow for experiences that help children understand interpersonal relations, put themselves in another’s shoes and see alternative possibilities of behaving or acting in given situations. Play with a puppet in small groups offers children opportunities to establish pro-social peer interactions and learn socialisation skills including solving minor conflicts. The research was conducted with 22 preschool teachers in Slovenian preschools and first grades of elementary schools (including 460 children aged 4–7). The teachers completed a scale of social behaviour for each child in the group before introducing the puppetry activities and after concluding them, i.e. after three months of intense, daily creative work with puppets. The paired difference t-test showed that according to the teachers’ assessments after the three-month conduct of creative puppetry activities in the group, the frequency of the occurrence of aggressive behaviour in the total population was diminished, especially in the children who had the lowest scores in the initial assessment.

Past research has shown that children with higher intellectual ability or intelligence quotient (IQ) were found less likely to be held back a grade in their schooling years and were less likely to be rejected by their peers or to have very few friends. The present study was conducted to determine the sex differences in intellectual ability among preschool children in Putrajaya. The research sample of 234 preschool children aged 6 from 16 private preschools in Putrajaya Malaysia was selected by using a cluster sampling technique. Preschool children’s intellectual ability was measured by using The Drawing-A-Person Intellectual Ability Test for Children, Adolescents, and Adults (DAP: IQ; Reynolds & Hickman, 2004). Higher scoring on the DAP: IQ signified higher IQ level which represents the higher intellectual ability of the preschool children. Results showed that there was a significant difference in intellectual ability, where preschool girls were found to have higher intellectual ability scores than boys. The study concluded that preschool boys and girls were different in their biology and social development which may cause differences in their intellectual ability level. The finding implied the need for more attention from the preschool setting to further improve their academic planning in order to enhance both preschool boys' and girl's learning and development.

This study concerns the explanation of sex differences that typically occur from adolescence onwards and favour males in achievement and participation in mathematics. In the absence of conclusive biological evidence, social, emotional, and attitudinal factors were investigated in this regard. The subjects were 1 605 Afrikaans-speaking Std 5 and Std 7 students and 2 506 of their parents. Cognitive measures included mathematics achievement and several aptitude tests. Also measured were attitudinal variables such as confidence and enjoyment of mathematics, perception of the attitudes of significant others towards self, personal and general usefulness of mathematics, and the stereotyping of mathematics. For Std 7 students, but not for Std 5 students, significant differences favouring males were found in spatial abilities and several attitudinal variables. The intention to continue participation in mathematics was accurately predicted by attitudinal variables in the case of Std 7 females, but not males.

Mental rotation performance has been found to produce one of the largest sex differences in cognition accompanied by sex differences in functional cerebral asymmetry. Although sex differences in mental rotation performance can be reliably demonstrated as early as age 5 years old, that is, long before puberty, no data exist as to whether preschooler's mental rotation performance is accompanied by sex differences in functional cerebral asymmetry. Based on the electrophysiological brain correlates of mental rotation, we observed a bilateral parietal brain activity for preschool boys whereas the preschool girls' brain activity was clearly lateralized toward the left hemisphere if and only if mental rotation was needed to solve the task. Thus, sex differences in functional cerebral asymmetry during mental rotation do not require hormonal changes that occur during puberty.

Background: Socio-emotional behavior problem is a serious health problem among pre-school children in the world. Bangladesh is no exception of this. Socio-emotional behavior problem has significantly negative impact at individual, familial and society level. There is a dearth of study regarding socio-emotional behavior among preschool children in Bangladesh. As a consequence, this study attempted to explore the status of socio-emotional behavior among preschool children in Bangladesh. Methodology: This cross-sectional descriptive study was conducted among 132 mothers having pre-school going children in the two selected schools in Bagherhat district, Bangladesh. Face to face interview was conducted for data collection by using a structured questionnaire. Data were analyzed by using Pearson product correlation, t-test and ANOVA. Results: The findings showed that the average mean of socio-emotional behavior of preschool children was 1.25. The results presented significant positive correlation of child's socio-emotional behavior with mother's age (r= .188, p=0.030), family income (r=.225, p=0.009) and number of siblings (r=.179, p=0.039) respectively. On the other hand, a significant difference of child's socio-emotional behavior with mother’s educational level (F=3.201, p=0.044), mother’s occupation (F=2.792, p=0.043), and sex of the child (t= -2.481, p=0.014) was observed. Conclusion: It can be concluded that preschool children have socio-emotional behavioral problems. Socio-emotional behavior was also significantly associated with demographic characteristics.

The computer interest of 3- and 4-year-old children attending a university-affiliated day care center was assessed via their participation in self-selected computer activities. Computer participation involved a 3-step process culminating in terminal interaction: proximity, observation, and working. Results of 2-way analyses of variance unexpectedly indicated higher computer interest scores for females than males; however, no effects were found for age. Pearson correlations indicated a pattern of negative relationships between boys' preference for the adult male role and the computer interest variables.

ObjectivesThis study examined the associations of parental socioeconomic status (SES) with preschoolers’ objectively measured sedentary time (SED) over the course of a week and with parent-reported children’s screen and reading times at home as indicators of sedentary behaviours (SB).DesignCross-sectional.SettingIn years 2015 and 2016 in Finland.Participants864 children, aged 3–6 years, with their parents.Outcome measuresChildren’s accelerometer data were transformed into average SED minutes per hour in different contexts (preschool, home during preschool days, weekend and total). Parent-reported children’s screen and reading times were expressed as average daily minutes. The SES indicators (maternal and paternal education and relative household income) were grouped into three categories. Linear or logistic regression analyses were used, with municipality, season, and children’s gender and age as covariates. CIs were adjusted for clustering at the preschool group level.ResultsChildren with low maternal (β=17.21, 95% CI: 8.71 to 25.71) and paternal (β=10.54, 95% CI: 0.77 to 20.30) education had more overall screen time at home than their more advantaged counterparts. SES differences in overall screen time were mostly explained by TV viewing. Children with low as opposed to high maternal education (β=−2.66, 95% CI: −4.95 to –0.38) had less reading time at home. Children whose fathers were on the middle (β=−1.15, 95% CI: −2.01 to –0.29) educational level had less weekend SED than those with high paternal education. Otherwise, parental SES was not related to objectively measured SED.ConclusionsThe results of this study highlight the fact that the associations between parental SES and preschoolers’ SB are dependent on the indicators of SES and SBs, and vary between different contexts. Generally, parental SES was not associated with SED, whereas some SES differences existed in screen time and reading time at home. Interventions aiming to diminish SES differences in children’s SB should focus on home hours.Trial registration numberISRCTN57165350.

The purpose of this study was to compare scores on a Relational Aggression Questionnaire for preschool boys and girls in Iran. The questionnaire was developed here, and its reliability and validity were assessed. Teachers' reports of relational aggression in 258 children ages 3 to 7 years was studied. Sex differences in relational aggression were not observed and was not significantly different across age groups.

Men and women sleep differently. While much is known about the mechanisms that drive sleep, the reason for these sex differences in sleep behaviour is unknown and understudied. Historically, women and female animals are underrepresented in studies of sleep and its disorders. Nevertheless, there is a growing recognition of sex disparities in sleep and rhythm disorders. Women typically report poorer quality and more disrupted sleep across various stages of life. Findings from clinical and basic research studies strongly implicate a role for sex steroids in sleep modulation. Understanding how neuroendocrine mediators and sex differences influence sleep is central to advancing our understanding of sleep-related disorders. The investigation into sex differences and sex steroid modulation of sleep is in its infancy. Identifying the mechanisms underlying sex and gender differences in sleep will provide valuable insights leading to tailored therapeutics that benefit each sex. The goal of this review is to discuss our current understanding of how biological sex and sex steroids influence sleep behaviour from both the clinical and pre-clinical perspective.

The present study examined the relations between field independence and simultaneous processing of preschool children as measured by the Preschool Embedded Figures Test (PEFT) and subtests from the Kaufman Assessment Battery for Children (K-ABC), respectively. Data partially supported the assumption that field-independent children would perform significantly better on simultaneous processing tasks in general. Significant age and sex differences on field-independence/field-dependence and simultaneous-processing abilities were found among the embedded figures task and selected portions of the K-ABC. Analysis of embedded figures further indicated age differences, but no significant sex differences.

During physical distancing, children do not meet their peers to play or talk together. Peer relationships have a crucial influence on all child development, especially for social skills or behaviour during early childhood. This study aims to determine changes in children's social behaviour during physical distancing during the Covid-19 pandemic. This research method is a descriptive quantitative study designed with the percentage value was used as a score for measuring the results of parental observations of children concerning the child's social behaviour instrument. Quota sampling (150 parents) was used to reach participants from various cities in Indonesia to see cultural differences. Data on children's social behaviour was obtained using the Preschool and Kindergarten Behaviour Scale (PKBS) tests. The data were then analysed using descriptive statistics. The results show that there are changes in children's social behaviour during physical distancing. 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Reports of suicidal behaviour from four countries using the same measures were higher for girls than for boys, and higher in self-reports than in parent reports for both referred and normal adolescents. In a sample of 480 referred adolescents, patterns of ‘low’ and ‘high’ suicidal scores were different when age, sex and diagnosis were considered. The probability of high scores for girls showed only a marginal increase with age, while there was a striking rise for boys. An affective diagnosis doubled the probability of high scores for both boys and girls, while it had no effect on low scores. Psychosocial stressors also increased the probability of high suicidal scores, particularly in adolescents with an affective disorder. Sex differences in suicidal behaviour were marked in the low-scoring groups.

This study investigates sex differences in patterns of drug taking and related injecting and sexual behaviour among 355 patients attending a London community drug team. The majority of cases attending the service presented with heroin problems. Men were more likely to use heroin by injection and women were more likely to use heroin by inhaling/smoking (‘chasing the dragon’); there was no sex difference in the overall incidence of needle sharing. The delay between first use of the problem drug and first presentation to services was the same for both men and women. Women were more likely to have a sexual partner who was a drug user and to be living with another user than men. This closer social attachment to other drug users was seen as presenting a high risk factor for women with regard to prognosis and treatment.