Validation of the Paranoid Thoughts Scale in Iranian Population

Considering that paranoid thought has one-dimensional approach, use of long questionnaires has no clinical and research application, therefore use of short questionnaires seems necessary. The Green et al. paranoid thought scale is a short self-assessment tool for assessing paranoid thought in non-clinical and clinical group. This research was conducted to validate this questionnaire in Iranian population.
In this cross-sectional survey, 356 students were selected using stratified sampling method and assessed by GPTS and Minnesota multiphasic paranoid inventory (MMPI) in 2015. Validity was assessed simultaneously with MMPI testing.
The correlation coefficient of GPTS and MMPI scores was α=0.71 and significant (p GPTS is an appropriate and short tool for screening in paranoid thought-related researches.