review the quality of psychometric assessment of self-assertiveness scale in students of isfahan university of medical sciences

aim and background: self-assertiveness is one of the ten life skills and its achievement is necessary in order to have a good and favorable life. precise measurement of these features and decision-making are necessary to promote it; therefore, the present study aimed to construct and review the quality of psychometric assessment of self-assertiveness scale in students of isfahan university of medical sciences. methods and materials: this was a descriptive-analytical tool study conducted on 196 students of isfahan university of medical sciences by cluster (selection of 6 courses of study) and randomized methods (selection of academic year from each course of study). using different self-assertiveness inventory forms (college self-assertiveness scale)  from reliable  website, different translations and  combination of questions and etc, the primary questionnaire was developed and it was implemented in three stages after assessment of face and content validity by the professors. the descriptive and psychometric statistics were calculated through spss software. findings: the results showed that the questionnaire had a proper face and content validity, acceptable concurrent validity (0.74), cronbach’s alpha (0.94) and reliability (0.87) through bisect method. analysis of principal components introduced four different factors including passive, aggressive, self-assertiveness which explained 33.58 percent of the total variance. conclusions: calculated psychometric indicators in this study indicated inappropriateness of this tool to assess the rate of self- assertiveness in students.