The aim of this study was to investigate the reliability and validity of the Rejection sensitivity Questionnaire (RSQ) in university students. The research sample consisted of 325 undergraduate students from the University of Isfahan (170 female, 150 male). Who were selected randomly through cluster sampling. The instruments used in this research were Rejection sensitivity Questionnaire (RSQ), Penn State Worry Questionnaire, and Rosenberg Self-Esteem Questionnaire. In order to assess the questionnaire's reliability, Cronbach's alpha was used. Correlation coefficient, exploratory and confirmatory factor analysis were used to assess construct validity of RSQ. Cronbach’s Alpha of the questionnaire was 0.84. In exploratory factor analysis, 2 factors (1- response expectation, 2- worry of unacceptance of request) were extracted which explained 28.28% of total variance. Confirmatory factor analysis confirmed these two factors. Penn State Worry Questionnaire and Rosenberg Self-Esteem Questionnaire were used to assess the convergent and divergent validity of the RSQ respectively. Both of them correlated significantly with RSQ. There was no difference between RSQ scores in males and females. The results of this study showed that the RSQ had satisfactory reliability and validity coefficients and can be a suitable tool for measuring Rejection sensitivity in Iranian students in future research.

Impulsivity is the core of many mental disorders and social problems and developmental approaches recommend that family and school factors play a role in the creation and continuation of impulsivity. The aim of the present study was to investigate the role of parenting styles and Rejection sensitivity in predicting impulsivity among high school students. The method of study was correlational and the sample consisted of 154 high school students of Kamyaran city selected by cluster sampling in 2015. To collect data, the questionnaires of the perceived parenting style, the Rejection sensitivity and the impulsivity were used and the collected data were analyzed using the Pearson correlation and multiple regression analysis. The results indicated that impulsivity has positive correlation with authoritarian parenting styles, permissive parenting style and the Rejection sensitivity, but it has negative correlation whit authoritative parenting style (p < 0. 001). The results also showed that parenting styles can predict the children's impulsivity.