Academic literature on the topic 'Projective Design'

Since subjects are often uncomfortable disclosing sensitive information, questions gauging respondent reaction to survey questions about drug abuse may aid in the interpretation of responses. Such debriefing questions can be worded subjectively, i.e., asking subjects about their own reactions to questions, or projectively, i.e., asking subjects about their perceptions of the reactions of others to questions. Using data from a study employing both types of debriefing questions, we examined whether question wording made any difference. We evaluated the extent to which drug reporting was associated with respondent reaction to the survey and whether reactions varied by type of debriefing question. A factor analysis of debriefing questions appended to an experimental household survey on drug abuse yielded factors reflecting distinct subjective and projective dimensions. Analyses suggested that debriefing question wording does make a difference with respect to respondent reaction. Contrary to expectations, analyses suggested that those reporting drug use expressed less comfort on subjectively worded items and more comfort on projectively worded items. Subjects who self-administered their survey also reported lower levels of subjective comfort. The projective measures derived from analyses were associated with three demographic variables: Younger subjects reported higher levels of projective ease than older subjects. Those with some college reported higher levels of projective ease than those with the least amount of formal education. African-Americans reported lower levels of projective ease than White/Other subjects. Implications for the design, interpretation, and analysis of drug use surveys are considered.

Abstract Chaos synchronization of discrete dynamical systems is investigated. An algorithm is proposed for projective synchronization of chaotic 2D Duffing map and chaotic Tinkerbell map. The control law was derived from the Lyapunov stability theory. Numerical simulation results are presented to verify the effectiveness of the proposed algorithm

Abstract The resolutions and maximal sets of compatible resolutions of all 2-(120,8,1) designs arising from maximal (120,8)-arcs, and the 2-(52,4,1) designs arising from previously known maximal (52,4)-arcs, as well as some newly discovered maximal (52,4)-arcs in the known projective planes of order 16, are computed. It is shown that each 2-(120,8,1) design associated with a maximal (120,8)-arc is embeddable in a unique way in a projective plane of order 16. This result suggests a possible strengthening of the Bose–Shrikhande theorem about the embeddability of the complement of a hyperoval in a projective plane of even order. The computations of the maximal sets of compatible resolutions of the 2-(52,4,1) designs associated with maximal (52,4)-arcs show that five of the known projective planes of order 16 contain maximal arcs whose associated designs are embeddable in two nonisomorphic planes of order 16.