%0 Journal Article %A Khazaie, Fatemeh %A Shairi, Mohammad Reza %A Heidari-Nasab, Leila %A Jalali, Mohammad Reza %T Comparison of self-efficacy, self-esteem, social anxiety, shyness and aggression among high school students with different levels of assertiveness %J Feyz Medical Sciences Journal %V 18 %N 3 %U http://feyz.kaums.ac.ir/article-1-2305-en.html %R %D 2014 %K Social anxiety, Aggression, Assertiveness, Self-efficacy, Self-esteem, Shyness, %X Background: The purpose of this study was to compare the self- efficacy, self -esteem, social anxiety, shyness and aggression among the high school students with different levels of assertiveness. Materials and Methods: In this study, 311 first and second grade high-school students were selected from the five regions of Tehran (North, South, Central, East, and West) through cluster sampling. The low, high and moderate-assertive participants were recognized based on the mean and standard deviation of assertiveness. Multivariate analysis (MANOVA) was used to compare the research variables in the three groups. Results: The results showed a significance value of F for Wilks lambda (F=4.12, P=0.001) indicating the overall differences in different levels of assertiveness. There was a significant difference in self-efficacy (P %> http://feyz.kaums.ac.ir/article-1-2305-en.pdf %P 229-238 %& 229 %! %9 Research %L A-10-176-1133 %+ Shahed University %G eng %@ 1029-7855 %[ 2014