Psychometric Properties of the Persian Version of the Types of Pornography Scale for the Iranian Population

Objectives :

The present study aims to investigate the psychometric properties of the Persian version of the Types of pornography scale (TPS) for the Iranian population. 

Methods:

 This is a descriptive psychometrics study. Participants were 318 males and 182 females (mean age: 23.55±5.07 years) who were selected using a convenience sampling method. They responded to the Persian versions of the TPS and the problematic pornography use scale (PPUS). Data were analyzed in SPSS v.23 and LISREL v.8.8 application using Lawshe’s method, confirmatory factor analysis (CFA), exploratory factor analysis (EFA), Pearson correlation test, Cronbach’s α, and Omega. 

Results:

 The questionnaire had good content validity. The original 3-factor model of the tool was not confirmed by the CFA. However, the EFA results led to a revised model with 7 factors. Cronbach’s α and Omega values for the whole scale were 0.87 and 0.86, respectively. The results showed the positive correlation of TPS with the subscales of PPUS, which confirmed the convergent validity. 

Conclusion:

 The Persian version of the TPS has acceptable reliability and validity to measure the use of different types of pornography in the Iranian population and can be used in studies related to pornography in Iran.