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Objective(s): The Premenstrual Symptoms Screening Tool (PSST) is a simple user friendly screening tool to identify women who suffer from severe PMS (Premenstrual Syndrome)/PMDD (Premenstrual Dysphoric Disorder) and who are likely to benefit from treatment. This study aimed to develop and validate PSST in Iran.
Methods: The English language of the PSST was translated into Persian (Iranian language) and was used in this study. A forward-backward translation procedure was followed to develop the Iranian version of the questionnaire.
A random sample of women students aged 18 and over completed the questionnaire in Tehran, Iran. Statistical analysis was performed to test the reliability and validity.
Results: In all, 498 individuals were included in the study. The mean age of the participants was 23.05 (SD=3.29) years and the mean days of cycle and bleeding was 29.48 (SD=4.5), 6.27 (SD=1.3) days respectively. In general the questionnaire received wellby participants and reliability standards was satisfactory (Cronbachʹs alpha=0.9 and intra-class correlation=0.8). Content Validity Ratio (CVR) and Content Validity Index (CVI) obtained, were 0.7 and 0.8 respectively, which were higher than our selected standards (0.62 and 0.79 respectively).
Conclusion: This study of the Iranian version of PSST proved that it is an acceptable, reliable and valid measure of PMS.
