Social competence and behavior problems in preschool children.

Objective: This study examines development of social competence, and behavior problems in kindergarten children during a specific period of childhood.

Method: A sample of 499 kindergarten children (244 girls and 255 boys) with the age range of 2 years up to 5 years and 6 months was selected using the random stratified sampling method. To collect data, California Preschool Social Competence Scale and Social Skills Rating System were completed by kindergarten teachers.

Exploratory and confirmatory factor analysis of the career decision-making difficulties questionnaire.

Objective: The present study aimed at validating the structure of Career Decision-making Difficulties Questionnaire (CDDQ).

Methods: Five hundred and eleven undergraduate students took part in this research; from these participants, 63 males and 200 females took part in the first study, and 63 males and 185 females completed the survey for the second study.

Results: The results of exploratory factor analysis (EFA) indicated strong support for the three-factor structure, consisting of lack of information about the self, inconsistent information, lack of information and lack of readiness factors.

The relationship between procrastination, learning strategies and statistics anxiety among Iranian college students: a canonical correlation analysis.

Objective: Approximately 66-80%of graduate students experience statistics anxiety and some researchers propose that many students identify statistics courses as the most anxiety-inducing courses in their academic curriculums. As such, it is likely that statistics anxiety is, in part, responsible for many students delaying enrollment in these courses for as long as possible. This paper proposes a canonical model by treating academic procrastination (AP), learning strategies (LS) as predictor variables and statistics anxiety (SA) as explained variables.

The factor structure of the revised cheek and buss shyness scale in an undergraduate university sample.

Objective: The present study examined the psychometric properties of the Persian version of the Revised Cheek and Buss Shyness Scale (RCBS) using confirmatory factor analysis among (n = 300) college students.

Method: A total of 300 undergraduate students participated in this study And completed the Revised Cheek and Buss Shyness Scale (RCBS). A confirmatory factor analysis was performed to test diagnosis as a unitary construct and to test an earlier-reported two-factor model.

World Health Organization Quality-of-Life Scale (WHOQOL-BREF): Analyses of Their Item Response Theory Properties Based on the Graded Responses Model.

Objective: This study has used Item Response Theory (IRT) to examine the psychometric properties of Health-Related Quality-of-Life.

Method: This investigation is a descriptive- analytic study. Subjects were 370 undergraduate students of nursing and midwifery who were selected from Tabriz University of Medical Sciences.