Psychometric Properties of Personal Need for Structure Scale

The objectives of this study are preparation of Persian language version of Personal Need for Structure Scale and investigation of its psychometric properties. A convenience sample of 521 from three universities in Tehran in 2015-2016 was examined to achieve the aims of this study. To investigate the validity of the scale, construct validity (via exploratory and confirmatory factor analysis) and convergent validity were used. For the investigation of the reliability, Cronbach alpha and test-retest reliability coefficients were used. Exploratory factor analysis showed two factors named desire for structure and response to lack of structure. Confirmatory factor analysis confirmed the superiority of the factor structure of the 9th version which was resulted from exploratory factor analysis, in comparison to the other versions in Iranian samples. For total scale and two extracted factors, Cronbach alphas were between 0.69 and 0.77 and the test- retest reliability coefficients were between 0.69 and 0.75. PNSS showed positive correlation with SPIN; also the response to the lack of structure had the strongest correlation. In sum, the Persian language version of the Personal Need for Structure Scale has adequate reliability and validity.