Validity and Reliability Assessment of the Complete Persian Version of the Temperament Evaluation of Memphis, Pisa, Paris, and San Diego Auto-Questionnaire in an Iranian Population.

Objective: The Temperament Evaluation of Memphis, Pisa, Paris, and San Diego - Auto-questionnaire (TEMPS-A) assesses five affective temperaments and has been translated into 32 languages. A 35-item short version is available in Persian, but the complete version is not yet translated. This study aimed to assess the validity and reliability of the complete Persian version of the TEMPS-A in an Iranian population. Method : This descriptive study translated the TEMPS-A questionnaire from English to Persian using a standard forward-backward method. The translation was evaluated for face and content validity by 10 psychiatry specialists, with quantitative content validity assessed through content validity ratio (CVR) and content validity index (CVI) calculations. The Persian TEMPS-A was completed twice, with a two-week interval, by 30 individuals out of the 319 medical staff of Imam Hossein Hospital in Tehran, Iran, who participated in the study, and its reliability was evaluated using Cronbach's alpha. The questionnaire was then distributed to the entire sample (n = 319) for the analysis of temperament frequencies and statistical indices by a statistician. Results: The Persian version of the TEMPS-A, consisting of 110 items across five factors (depressive, cyclothymic, hyperthymic, irritable, and anxious), demonstrated excellent reliability with Cronbach's alpha values of 0.910, 0.909, 0.911, 0.910, and 0.909, respectively. The questions related to cyclothymic and hyperthymic temperaments exhibited the highest and lowest correlation coefficients with the general scale, respectively. Most subscales in the Persian TEMPS-A version showed correlation coefficients ranging from 0.28 to 0.68. An ANOVA with Cochrane's test revealed a significant difference in the mean scores of the questionnaire items (P < 0.001), with a grand mean score of 1.73 across all questions. Conclusion: The Persian version of the TEMPS-A, consisting of 110 items, showed good internal consistency and a strong correlation with the original version. This suggests that it is suitable for use in temperament studies among the Iranian population.