Psychometric Validation of the Adult Sensory Profile Questionnaire in Healthy Iranian Adults

Abstract

Background: The Adult Sensory Profile Questionnaire is a standardized instrument designed to assess sensory processing patterns in everyday home and work environments. Its psychometric characteristics had not previously been evaluated among healthy adults in Iran. Methods: In this cross-sectional study, 166 students from Semnan University of Medical Sciences were recruited during the 2022 - 2023 academic year. The Adult Sensory Profile was culturally adapted in accordance with World Health Organization (WHO) guidelines, including forward- and back-translation, expert evaluation of Content Validity Index (CVI), and assessment of face validity. Convergent validity was evaluated using the Adult Sensory Processing Questionnaire (ASPQ) via Pearson’s correlation. Internal consistency was measured using Cronbach’s alpha and McDonald’s omega, and test-retest reliability over a 14-day interval was assessed using both Pearson’s R and the intraclass correlation coefficient (ICC). Data were analyzed in SPSS version 20, with normality and homogeneity of variances examined using the Shapir-Wilk and Levene’s tests, respectively. Results: The Persian version of the Adult Sensory Profile exhibited strong psychometric properties, including good internal consistency (alpha and omega > 0.70), high convergent validity with the ASPQ (R = 0.783), and satisfactory test-retest reliability over 14 days (Pearson’s R = 0.743, 95% CI: 0.68 - 0.81; ICC = 0.765, 95% CI: 0.70 - 0.83), confirming both linear consistency and temporal stability. Conclusions: The findings support the reliability and validity of the Persian Adult Sensory Profile as an effective tool for evaluating sensory processing among healthy Iranian adults. Its careful translation and cultural adaptation allow Persian-speaking clinicians and researchers to accurately identify sensory patterns and monitor sensory adaptation over time.