Making Marital Infidelity Questionnaire as valid one

Background and Objective: The issue of marital infidelity in Iranian society is a growing concern  which is accompanied  to unsustainable relationships and high divorce rates. The present  study aimed  to study the psychometric properties of the Persian version of marital infidelity questionnaire. Materials and Methods: This is a descriptive-psychometric research in which  400  university students of  AzarbaiijanShahidMadani University were selected by stratified random sampling method and were studied . The data were analyzed using a confirmatory and exploratory factor analysis (analysis  of main components with varimax rotation), multivariate analysis of variance. Results: analysis of factors were performed using the internal consistency method as well as re- test for the reliability of the present questionnaire. For validity, a confirmatory factor analysis was used ,results suggested  consistent and accurate relationship between the components of this questionnaire. The internal consistency of questionnaires by  Cronbach's alpha for the components including  legitimacy, seduction, normalization, sexual orientation, social context, and excitement were 0.79, 0.75, 0.54, 0.79, 0.71, 0.79 respectively  and for the whole questionnaire was0.91 . The reliability was  calculated obtained by  two- half method for all scales as 0.81(r=0.81) Conclusion: In sum, the results of the research confirmed validity of the Persian form of the Marital Infidelity Questionnaire, which indicates that Marital Infidelity Questionnaire is a reliable  and valid instrument as well as it can be used in clinical and research setting. Therefore, the current questionnaire has an appropriate reliability and validity for using by researchers and specialists.