Renormalizing the Questionnaire of Family Efficiency Measurement Using Item Response Theory

This study was conducted in order to renormalize the questionnaire of family efficiency measurement (S.FEQI). The population was married undergraduate and graduate students and married hawzah students of levels 2 and 3 in the city of Qom. 391 students were selected among them by convenience sampling. The data were analyzed with the help of classical test theory and item response theory and also by SPSS, MULTILOG, and R softwares. The study results showed that the differentiation power and awareness level of 19 items are not enough and the items that show the very low and low efficiencies can not differentiate the respondents. Therefore, these two items can be merged and then the questionnaire can be corrected. Finally, the questionnaire of family efficiency with 60 items is able to measure insight, legal, and moral components with, respectively, 20, 14, and 26 items.