Psychometric Properties of the Persian Version of the Adolescent and Adult Time Inventory – Time Attitudes Scale in Iranian Adolescents and Adults

Time attitudes are individuals' emotional and evaluative feelings toward the past, present, and future. We examined the internal consistency, structural validity, and convergent validity of scores on the Persian Adolescent and Adult Time Inventory–Time Attitudes (AATI-TA) scale in Iranian adolescents and young adults. Sample 1 included 387 high school students aged 15–18, and Sample 2 included 378 university students aged 18–52. The AATI-TA has six subscales; scores were reliable in both samples (α = .76–.93). Confirmatory factor analyses supported the six-factor model, and scores achieved scalar invariance across samples. Time attitude scores were not associated with age but were meaningfully associated with life satisfaction (Sample 1) and optimism (Sample 2), supporting convergent validity. The Persian AATI-TA is psychometrically sound for research in Iran and cross-cultural comparisons.