Academic literature on the topic 'Percentage Consonants Correct (PCC)'
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Journal articles on the topic "Percentage Consonants Correct (PCC)"
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Shriberg, Lawrence D., Diane Austin, Barbara A. Lewis, Jane L. McSweeny, and David L. Wilson. "The Percentage of Consonants Correct (PCC) Metric." Journal of Speech, Language, and Hearing Research 40, no. 4 (August 1997): 708–22. http://dx.doi.org/10.1044/jslhr.4004.708.
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Research in normal and disordered phonology requires measures of speech production that are biolinguistically appropriate and psychometrically robust. Their conceptual and numeric properties must be well characterized, particularly because speech measures are increasingly appearing in large-scale epidemiologic, genetic, and other descriptive-explanatory database studies. This work provides a rationale for extensions to an articulation competence metric titled the Percentage of Consonants Correct (PCC; Shriberg & Kwiatkowski, 1982; Shriberg, Kwiatkowski, Best, Hengst, & Terselic-Weber, 1986), which is computed from a 5- to 10-minute conversational speech sample. Reliability and standard error of measurement estimates are provided for 9 of a set of 10 speech metrics, including the PCC. Discussion includes rationale for selecting one or more of the 10 metrics for specific clinical and research needs.
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Dale, Emily W., Allison M. Plumb, Mary J. Sandage, and Laura W. Plexico. "Speech-Language Pathologists’ Knowledge and Competence Regarding Percentage of Consonants Correct." Communication Disorders Quarterly 41, no. 4 (June 14, 2019): 222–30. http://dx.doi.org/10.1177/1525740119853806.
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The aim of this article is to examine speech-language pathologists’ (SLPs) knowledge and competence using Percentage of Consonants Correct (PCC). Participants were recruited through posts on social media and message boards for the American Speech-Language-Hearing Association (ASHA) Special Interest Groups. In addition, surveys were emailed via the ASHA membership directory to SLPs in selected states who reported working in settings with a primarily pediatric population. The majority of SLPs reported a lack of academic and clinical training in the area of PCC. Participants demonstrated limited knowledge of the rules for calculating PCC in addition to decreased calculation ability and confidence. Because PCC is well-validated, SLPs would benefit from increased clinical and academic exposure to the measure; however, as many report that they do not use PCC, this calls into question its clinical practicality. The question remains if there is a need for a more expedient process by which to objectively quantify severity, such as use of an automated metric.
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Alighieri, Cassandra, Kim Bettens, Laura Bruneel, Evelien D'haeseleer, Ellen Van Gaever, and Kristiane Van Lierde. "Reliability of Outcome Measures to Assess Consonant Proficiency Following Cleft Palate Speech Intervention: The Percentage of Consonants Correct Metric and the Probe Scoring System." Journal of Speech, Language, and Hearing Research 64, no. 6 (June 4, 2021): 1811–28. http://dx.doi.org/10.1044/2021_jslhr-20-00628.
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Purpose This study compared the inter- and intrarater reliability of the percentage of consonants correct (PCC) metrics and the probe scoring system between an experienced and a less experienced rater and between two experienced raters. In addition, these outcome measures' ability to reflect changes following speech intervention was measured. Method During Phase 1, two raters (Rater 1 with 5 years of experience in cleft-related speech disorders and Rater 2 with limited experience in cleft-related speech disorders) independently assessed 134 speech samples at the word and sentence levels, which were collected on different data points before, during, and following a cleft palate speech intervention. During Phase 2, a third rater (with 8 years of experience) analyzed 34 speech samples. The percentage of consonants correct–revised, the percentage of correct places and manners, and probe scores at the word and sentence levels were measured. Results Poor-to-moderate interreliability between Raters 1 and 2 was found due to differences in error classification. Interrater reliability between Raters 1 and 3 was very good for both the PCC metrics and the probe scores. The interrater reliability for the amount of targets elicited was lower compared to the interrater reliability for the amount of targets correct. The probe scoring system demonstrated a greater ability to detect changes toward the correct production of the target consonant compared to the PCC metrics. Conclusions Having an experience with the assessment of cleft-related speech disorders is a crucial factor to gain reliable results. The interrater reliability for the PCC metrics and the probe scoring system between two experienced raters did not differ, suggesting that both outcome measures can be used in cleft palate speech intervention studies. Despite the ability of the probe scoring system to detect changes, further research should provide insight in the benefits of this system both for research and clinical purposes.
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Campbell, Thomas F., Christine Dollaghan, Janine E. Janosky, and P. David Adelson. "A Performance Curve for Assessing Change in Percentage of Consonants Correct–Revised (PCC-R)." Journal of Speech, Language, and Hearing Research 50, no. 4 (August 2007): 1110–19. http://dx.doi.org/10.1044/1092-4388(2007/077).
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Babatsouli, Elena. "Correlation between the measure for cluster proximity (MCP) and the percentage of consonants correct (PCC)." Clinical Linguistics & Phonetics 35, no. 1 (March 30, 2020): 65–83. http://dx.doi.org/10.1080/02699206.2020.1744189.
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Pham Thi, Van, Ben Pham Thi, Sharynne McLeod, and Trung Vo Nguyen. "Review of diagnostic criteria for speech sound disorders in children." Journal of Science Educational Science 66, no. 4AB (October 2021): 82–97. http://dx.doi.org/10.18173/2354-1075.2021-0063.
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Speech sound disorders (SSD) is a common communication disorder with long-term consequences in children. Diagnosis and assessment play an important role in the identification of SSD and its severity, to assist goal setting and intervention planning and to measure progression. In order to define and describe diagnostic criteria regarding SSD in children, this review paper uses content analysis of 14 studies reporting on children with SSD. Results reveal that diagnostic criteria for SSD in children include: 1) Mean scores of percentage phonemes correct (e.g., percentage of consonants correct, PCC, and percentage of vowels correct, PVC); 2) phonological processes; 3) “concern” from parents, teachers, and children themselves about children’s speech and pronunciation; and 4) children's speech intelligibility. While mean scores of the percentage of consonants correct were varied between studies, diagnostic criteria for identifying SSD were achieving a PCC score between one and two standard deviations below the mean for the child’s age. Some children with SSD were reported to use phonological processes that are occasional (>10%) and rare (>5%), or are still being used at an older age compared to typically developing children. Many children with SSD had parents and teachers who were concerned about their speech and pronunciation. Mean scores of young children’s speech intelligibility measured by the Intelligibility in Context Scale were typically below 4.0. This review provides useful information and a foundation for research and clinical practice in a language in which diagnosis criteria for SSD have not been established.
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Keffala, Bethany, Shelley Scarpino, Carol Scheffner Hammer, Barbara Rodriguez, Lisa Lopez, and Brian Goldstein. "Vocabulary and Phonological Abilities Affect Dual Language Learners' Consonant Production Accuracy Within and Across Languages: A Large-Scale Study of 3- to 6-Year-Old Spanish–English Dual Language Learners." American Journal of Speech-Language Pathology 29, no. 3 (August 4, 2020): 1196–211. http://dx.doi.org/10.1044/2019_ajslp-19-00145.
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Purpose This study examined factors of language ability that predict consonant production accuracy in young Spanish–English dual language learners (DLLs). Method Participants were 695 Latino DLLs, ages 3;0–6;5 (years;months). Single-word productions were elicited using the Bilingual Phonological Assessment (Miccio & Hammer, 2006). Children's consonant productions were assessed using Percentage of Consonants Correct–Revised (PCC-R; Shriberg et al., 1997a). Vocabulary abilities were assessed using the Woodcock–Muñoz Language Survey–Revised (Woodcock et al., 2005). Multiple linear regression analyses were used to determine the effects of vocabulary abilities and cross-language consonant production abilities on children's consonant production accuracy in each language. Results Large amounts of the variance in PCC-R scores for English ( R 2 = .65) and Spanish ( R 2 = .43) were predicted by children's age, vocabulary scores within the same language, and PCC-R scores across languages. Conclusion Spanish–English DLLs' consonant production abilities in both languages improve with age between 3;0 and 6;5. DLLs' accuracy in each language is also affected by vocabulary abilities within the same language and by their consonant production abilities in the other language. In particular, children's consonant production abilities in each language were highly predictive of their consonant production abilities in the other language, which suggests that shared phonological skills support their development across languages.
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Smit, Ann Bosma, Klaire Mann Brumbaugh, Barbara Weltsch, and Melanie Hilgers. "Treatment of Phonological Disorder: A Feasibility Study With Focus on Outcome Measures." American Journal of Speech-Language Pathology 27, no. 2 (May 3, 2018): 536–52. http://dx.doi.org/10.1044/2017_ajslp-16-0225.
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Purpose In a feasibility study for a randomized controlled trial of treatments for phonological disorders conducted over a period of 8 months, we examined 6 clinically relevant outcome measures. We took steps to reduce error variance and to maximize systematic variance. Method Six children received traditional treatment (Van Riper, 1939), and 7 received expansion points (Smit, 2000), a treatment program with both phonological and traditional elements. Outcome measures, which were applied to both word list and conversational samples, included percentage of consonants correct (PCC; Shriberg & Kwiatkowski, 1982), PCC for late and/or difficult (L/D) consonants and number of L/D consonants acquired. Results In repeated-measures analyses of variance, all measures showed significant differences from pretreatment to posttreatment, and the word list measures were associated with very high power values. In analyses of covariance for between-groups contrasts, the adjusted expansion points mean exceeded the adjusted traditional treatment mean for every measure; however, no differences reached significance. For the L/D PCC (conversation) measure, the contrast between groups was associated with a large effect size. Conclusion We recommend that practitioners use outcome measures related to a word list. We recommend that researchers consider using L/D PCC on the basis of conversational samples to detect differences among treatment groups. Supplemental Materials https://doi.org/10.23641/asha.5872677
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Hammarström, Inger Lundeborg, Jill Nyberg, Suvi Alaluusua, Jorma Rautio, Erik Neovius, Anders Berggren, Christina Persson, Elisabeth Willadsen, and Anette Lohmander. "Scandcleft Project Trial 2—Comparison of Speech Outcome in 1- and 2-Stage Palatal Closure in 5-Year-Olds With UCLP." Cleft Palate-Craniofacial Journal 57, no. 4 (November 20, 2019): 458–69. http://dx.doi.org/10.1177/1055665619888316.
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Objective: To investigate in-depth speech results in the Scandcleft Trial 2 with comparisons between surgical protocols and centers and with benchmarks from peers without cleft palate. Design: A prospective randomized clinical trial. Setting: Two Swedish and one Finnish Cleft Palate center. Participants: One hundred twelve participants were 5-years-old born with unilateral cleft lip and palate randomized to either lip repair and soft palate closure at 4 months and hard palate closure at 12 months or lip repair at 3 to 4 months (Arm A), or a closure of both the soft and hard palate at 12 months (Arm C). Main Outcome Measures: A composite measure dichotomized into velopharyngeal competency (VPC) or velopharyngeal incompetency (VPI), overall assessment of velopharyngeal function (VPC-Rate), percentage of consonants correct (PCC score), and consonant errors. In addition, number of speech therapy visits, average hearing thresholds, and secondary surgeries were documented to assess burden of treatment. Results: Across the trial, 53.5% demonstrated VPC and 46.5% VPI with no significant differences between arms or centers. In total, 27% reached age-appropriate PCC scores with no statistically significant difference between the arms. The Finnish center had significantly higher PCC scores, the Swedish centers had higher percentages of oral consonant errors. Number of speech therapy visits was significantly higher in the Finnish center. Conclusion: At age 5, poor speech outcomes with some differences between participating centers were seen but could not be attributed to surgical protocol. As one center had very few participants, the results from that center should be interpreted with caution.
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Campbell, Thomas F., Christine Dollaghan, Janine Janosky, Heather Leavy Rusiewicz, Steven L. Small, Frederic Dick, Jennell Vick, and P. David Adelson. "Consonant Accuracy After Severe Pediatric Traumatic Brain Injury: A Prospective Cohort Study." Journal of Speech, Language, and Hearing Research 56, no. 3 (June 2013): 1023–34. http://dx.doi.org/10.1044/1092-4388(2012/12-0077).
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Purpose The authors sought to describe longitudinal changes in Percentage of Consonants Correct—Revised (PCC–R) after severe pediatric traumatic brain injury (TBI), to compare the odds of normal-range PCC–R in children injured at older and younger ages, and to correlate predictor variables and PCC–R outcomes. Method In 56 children injured between age 1 month and 11 years, PCC–R was calculated over 12 monthly sessions beginning when the child produced ≥ 10 words. At each session, the authors compared odds of normal-range PCC–R in children injured at younger (≤ 60 months) and older (> 60 months) ages. Correlations were calculated between final PCC–R and age at injury, injury mechanism, gender, maternal education, residence, treatment, Glasgow Coma Score, and intact brain volume. Results PCC–Rs varied within and between children. Odds of normal-range PCC–R were significantly higher for the older than for the younger group at all sessions but the first; odds of normal-range PCC–R were 9 to 33 times higher in the older group in sessions 3 to 12. Age at injury was significantly correlated with final PCC–R. Conclusion Over a 12-month period, severe TBI had more adverse effects for children whose ages placed them in the most intensive phase of PCC–R development than for children injured later.
Dissertations / Theses on the topic "Percentage Consonants Correct (PCC)"
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Ode, Carina, and Cattu Alves Mirjam Öster. "Pingu och PSC: språkljudsproduktion hos barn med språkljudsstörning vid fyra olika taluppgifter : Analys av träffsäkerhet och avvikelsetyper samt utvärdering av en ny eliciteringsmetod och ett nytt träffsäkerhetsmått." Thesis, Uppsala universitet, Logopedi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-339948.
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ABSTRACT The purpose of the current study was to compare speech samples elicited with four different methods regarding speech sound production errors. Nine Swedish-speaking children with SSD (Speech Sound Disorder) participated. A new method of speech elicitation was introduced, a narrative task using a silent short film as a prompt. Severity of involvement of the speech sound production was measured using PCC-R (Percentage of Consonants Correct-Revised), as well as a new severity metric, PSC (Percentage of Syllables Correct). Speech error patterns were also analyzed. All four methods of speech elicitation are suggested to be useful clinical tools for phonological assessment. The elicitation methods yielded similar results. However, the results indicated that a higher degree of control and phonological complexity in a task generally yield lower severity measures and more types of speech error patterns. The definition of SSD used in this study includes several clinical diagnoses used by speech and language pathologists. The participants’ results were therefore analyzed regarding clinical diagnosis. No difference was found. This first evaluation of PSC shows that it is a promising new severity metric, and that its strength lies first and foremost in the possibility to include unintelligible speech. The evaluation of the new elicitation task shows that narration of a silent short film as a prompt is promising as well. The results yielded indicate a gain in degree of control combined with a preserved high ecological validity associated with speech elicitation methods yielding conversational speech. SAMMANFATTNING Syftet med den här studien var att undersöka variation av avvikelser i språkljudsproduktionen hos nio svensktalande barn med språkljudsstörning vid fyra olika taluppgifter. En av de fyra uppgifterna innefattade en ny eliciteringsstrategi: berättande till ljudlös film. Grad av avvikelse undersöktes genom beräkning av PCC-R (Percentage of Consonants Correct-Revised), samt ett nytt mått, PSC (Percentage of Syllables Correct). Även avvikelsetyper undersöktes. Resultatet tyder på att samtliga undersökta taluppgifter kan vara användbara kliniska verktyg. Även om ingen skillnad kunde påvisas mellan deltagarnas grad av avvikelse vid de fyra taluppgifterna, sågs en tendens till att en hög styrningsgrad och fonologisk komplexitet av målorden ger upphov till en lägre träffsäkerhet i språkljudsproduktionen och ökar antalet olika avvikelsetyper som förekommer. Definitionen av språkljudsstörning inkluderar olika logopediska diagnoser. I denna studie kunde barnens diagnostillhörighet inte förklara variationer i resultaten. Den första utvärderingen av PSC visar att det är ett lovande nytt mått på träffsäkerhet i språkljudsproduktionen, och att dess styrka framför allt ligger i möjligheten att inkludera oförståeligt tal. Även denna första utvärdering av den nya eliciteringsmetoden berättande till ljudlös film är lovande. Resultaten tyder på en högre styrningsgrad samtidigt som den ekologiska validiteten i sammanhängande tal till stor del bibehållits.
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Jartun, Randi. "The percentage consonants correct and intelligibility of normal, language delayed, and history of language delayed children." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4328.
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Highly unintelligible children may mistakenly be assumed to have difficulty only with the misarticulation of consonants. Expressive language concerns may be ignored while the primary focus of intervention becomes the correction of misarticulated speech. Questions have arisen regarding the possibility of both speech and expressive language difficulties contributing to unintelligibility. Shriberg and Kwiatkowski (1982) developed an ordinal means of rating severity of involvement. One of the constructs of the severity scale was intelligibility. The metric percentage consonants correct (PCC) was developed to identify severity of involvement of disorders of phonology.
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Hsieh, Meng-ting, and 謝孟庭. "The Relationship among the Percentage of Consonants Correct (PCC), Speech Intelligibility and Clinical Judgments of Severity in Phonological Evaluation." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/r2p623.
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碩士國立高雄師範大學
聽力學與語言治療研究所
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“Severity” is an important assessment of articulatory and phonological evaluation abroad, especially the percentage of consonants correct（PCC）, an evidence-based and quantified index of good reliability and validity. Thus, the purpose of this study is to prove PCC available for internal clinical application. The speakers of this study are thirty children with articulatory and phonological disorders. The researcher collected all speakers’ speech samples including words, sentences, and discourses, and then calculated PCC of all samples. Furthermore, four speech-language pathologists evaluated all speakers’ discourses and gave five-grade rating. In the meantime, sixty non-major related undergraduates listened to speakers’ words and wrote them down. And then, the researcher calculated intelligibility scores, the percentage of correct words by listeners’ judging. According to data of PCC, rating and speech intelligibility, the results of this study are as follows. Firstly, the PCC of sentences is the highest of all sampling units. Furthermore, there are a high correlation between three speech samples and no difference between partial and whole discourses. Secondly, this study proved that PCC is an excellent index of severity. Besides, there are a significant correlation between the PCC of words and intelligibility and a negative correlation between rating and intelligibility. Among group Ⅱ, there is a significant correlation. Based on the results, the researcher described the limits of this study and give suggestions for further research.
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Lourenço, Isabel Maria Lopes de Sousa. "Programa de leitura de histórias em contexto de grupo: o contributo no desempenho linguístico infantil aos 4 e 5 anos de idade." Master's thesis, 2017. http://hdl.handle.net/10284/6717.
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A exposição de crianças à leitura de histórias infantis contribui para o desenvolvimento
das suas habilidades narrativas, constituindo um importante indicador do desempenho
escolar das mesmas (Verzolla, Isotani & Perissinoto, 2012). Existem também estudos
que referem evoluções nas competências de atenção, escuta, sequencialização,
vocabulário, organização de ideias e leitura e escrita (Reed, 1987; Speaker, Taylor &
Kamen, 2004).
A presente investigação, de caráter longitudinal, teve como objetivo principal analisar o
contributo que um programa de leitura de histórias em contexto de grupo pode ter no
desempenho linguístico de crianças entre os 4 e os 5 anos de idade, nomeadamente nos
valores de Percentagem de Consoantes Corretas, Comprimento Médio de Enunciado,
Memória Auditiva, assim como inteligibilidade da fala encadeada.
O estudo foi realizado no Hospital-Escola da Universidade Fernando Pessoa, após
parecer positivo da Comissão de Ética desta mesma instituição. A amostra foi
constituída por 14 crianças com perturbação de linguagem primária, com idades
compreendidas entre os 4 e os 5 anos, distribuídos por dois grupos de estudo, um
experimental e um de controlo. O grupo experimental usufruiu de intervenção de um
programa de leitura de contos infantis, juntamente com sessões individuais de terapia da
fala. O grupo controlo recebeu sessões de terapia da fala individual. As crianças foram
avaliadas relativamente às medidas: Percentagem de Consoantes Corretas,
Comprimento Médio de Enunciado, Memória Auditiva e Inteligibilidade.
Os resultados sugerem melhorias da Percentagem de Consoantes Corretas e do
Comprimento Médio de Enunciado, contudo não se verificou efeito da eficácia de
intervenção nestas medidas. Na memória auditiva os resultados parecem indicar um
efeito de intervenção significativo nas tarefas de palavras e ordens. Relativamente à
avaliação de inteligibilidade, constatou-se concordância elevada entre avaliadores,
contudo os resultados no grupo experimental (antes e após avaliação) mostraram-se
discutíveis. A opinião dos pais em relação à intervenção em contexto de grupo foi
avaliada como favorável/muito favorável.The children's exposure to reading stories contributes to the development of their narrative abilities, constituting an important indicator of their educational performance (Verzolla, Isotani & Perissinoto, 2012). There are also studies that show evolutions in attention, listening, sequencing, vocabulary, organization of ideas, reading and writing skills (Reed, 1987; Speaker, Taylor & Kamen, 2004). This study analyze the contribution of a group reading program can in the linguistic performance of children between 4 and 5 years old, measured by Percentage of Consonants Correct, Mean Length Utterance, Auditory Memory, and speech intelligibility. The study was carried out at Hospital-Escola Universidade Fernando Pessoa, after a positive opinion from the Ethics Committee of this institution. The sample consisted of 14 children with primary language disorder, aged between 4 and 5 years, divided into two study groups, one experimental and one control group. The experimental group benefited from an intervention program of children's storytelling, along with individual speech therapy sessions. The control group received individual speech therapy sessions. The children were evaluated for the measures: Percentage of Percentage of Consonants Correct, Mean Length Utterance, Auditory Memory, and speech intelligibility. The results suggest improvements in the percentage of correct consonants and the Mean Length Utterance, but there was no effect of intervention effectiveness on these measures. In auditory memory the results seem to indicate a significant intervention effect on words and order’s tasks. Regarding the intelligibility evaluation, there was a high agreement between evaluators, but the results in the experimental group (before and after evaluation) were questionable. The parents' opinion regarding the intervention in a group context was evaluated as favorable / very favorable.
Reports on the topic "Percentage Consonants Correct (PCC)"
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Jartun, Randi. The percentage consonants correct and intelligibility of normal, language delayed, and history of language delayed children. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6212.
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