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Babaee J, Najafi M, Rezaei A. (2018). The Psychometric Properties of Positive Youth Development Scale in Students. Journal of Psychological Science. 16(64), 540-553.
URL: http://psychologicalscience.ir/article-1-101-en.html

As developmental psychologist cease to perceive adolescence as a period of turmoil and adopt the Positive Youth Development (PYD) perspective, pschometrically sound measurement tools will be needed to assess adolescent positive attributes. The present research aimed to study psychometrics characteristics of positive youth development questionnaire in students. The present study was descriptive and correlation studies' type. For this purpose, 400 students (200 boys and 200 girls) were selected by multistage cluster sampling method & answered positive youth development Geldhof et al (2014) and Illinois bullying (2001) scales. For data analysis, was used from factor analysis, Cronbach's alpha coefficient and Pearson correlation methods. Factor analysis result showed that this scale was saturated with five factors. In addition, Pearson correlation results indicated that the positive youth development with discipline (r=0.32) academic achievement (r=0.31) and bullying (r=-0.45) significant relationship p≤0.01 there. Also positive youth development questionnaire reliability using Cronbach's alpha for the total scale was 0.81 and for each of the subscales, including competence 0.50, confidence 0.86, character 0.52, caring 0.63 and connection 0.79. Results indicated that positive youth development in the Persian version of the questionnaire can be used as a valid instrument in psychological research.