Volume 26, Issue 3 (Autumn 2025)
jrehab 2025, 26(3): 464-489 |
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Mousavi N, Poursharifi H, Momeni F, Pourshahbaz A, Rapee R. Psychometric Properties of the Persian Version of the Adolescent Life Interference Scale for Internalizing Symptoms in Iranian Adolescents. jrehab 2025; 26 (3) :464-489
URL: http://rehabilitationj.uswr.ac.ir/article-1-3492-en.html
URL: http://rehabilitationj.uswr.ac.ir/article-1-3492-en.html
1- Department of Clinical Psychology, School of Behavioral Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
2- Department of Clinical Psychology, School of Behavioral Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. ,ha.poursharifi@uswr.ac.ir
3- Centre for Emotional Health, School of Psychological Sciences, Macquarie University, Sydney, Australia.
2- Department of Clinical Psychology, School of Behavioral Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. ,
3- Centre for Emotional Health, School of Psychological Sciences, Macquarie University, Sydney, Australia.
Abstract: (1569 Views)
Objective Anxiety and depressive disorders are prevalent during adolescence and are associated with significant functional impairments. Currently, there are few tools available to assess functional impairments due to these disorders in adolescents, and very few have been validated across different cultures. This study aims to translate and validate the Persian version of the adolescent life interference scale for internalizing disorders (ALIS-I) in Iranian adolescents.
Materials & Methods In this descriptive and psychometric study, participants were 384 adolescents (57.8% girls) with a mean age of 15.54±1.62 years, who were selected using a convenience sampling method from different cities of Iran in 2022. They included 322 non-clinical samples (52.8% girls and 47.2% boys) and 62 clinical samples (83.9% girls and 16.1% boys). Construct validity was assessed using confirmatory factor analysis (CFA), internal consistency reliability was evaluated using Cronbach’s α and McDonald’s omega coefficients, and test re-test reliability was assessed at a three-week interval using the intraclass correlation coefficient (ICC). To evaluate convergent validity, the relationship between the ALIS-I score and the emotional avoidance strategy inventory for adolescents (EASI-A) score was assessed using Pearson’s correlation test.
Results The CFA results confirmed the four-factor solution of the Persian ALIS-I. The Cronbach’s α coefficients for the overall scale and its subscales ranged from 0.70 to 0.89, and McDonald’s omega coefficients exceeded 0.70 across all scales. The ICC ranged from 0.80 to 0.92 for the overall scale and subscales. Moreover, the total ALIS-I (r=0.85, P<0.001) and its subscales, including withdrawal/avoidance (r=0.45, P<0.001), somatic symptoms (r=0.71, P<0.001), problems with study/work (r=0.53, P<0.001), and peer problems (r=0.41, P<0.001), had significant positive correlations with the EASI-A score.
Conclusion The Persian version of ALIS-I is a valid and reliable tool for assessing functional impairments due to anxiety and depressive disorders in Iranian adolescents and can be used by clinicians in Iran to evaluate treatment outcomes.
Materials & Methods In this descriptive and psychometric study, participants were 384 adolescents (57.8% girls) with a mean age of 15.54±1.62 years, who were selected using a convenience sampling method from different cities of Iran in 2022. They included 322 non-clinical samples (52.8% girls and 47.2% boys) and 62 clinical samples (83.9% girls and 16.1% boys). Construct validity was assessed using confirmatory factor analysis (CFA), internal consistency reliability was evaluated using Cronbach’s α and McDonald’s omega coefficients, and test re-test reliability was assessed at a three-week interval using the intraclass correlation coefficient (ICC). To evaluate convergent validity, the relationship between the ALIS-I score and the emotional avoidance strategy inventory for adolescents (EASI-A) score was assessed using Pearson’s correlation test.
Results The CFA results confirmed the four-factor solution of the Persian ALIS-I. The Cronbach’s α coefficients for the overall scale and its subscales ranged from 0.70 to 0.89, and McDonald’s omega coefficients exceeded 0.70 across all scales. The ICC ranged from 0.80 to 0.92 for the overall scale and subscales. Moreover, the total ALIS-I (r=0.85, P<0.001) and its subscales, including withdrawal/avoidance (r=0.45, P<0.001), somatic symptoms (r=0.71, P<0.001), problems with study/work (r=0.53, P<0.001), and peer problems (r=0.41, P<0.001), had significant positive correlations with the EASI-A score.
Conclusion The Persian version of ALIS-I is a valid and reliable tool for assessing functional impairments due to anxiety and depressive disorders in Iranian adolescents and can be used by clinicians in Iran to evaluate treatment outcomes.
Keywords: Adolescents, Anxiety disorders, Depressive disorders, Life interference, Reliability, Validity
Type of Study: Original |
Subject:
Clinical Psycology
Received: 4/06/2024 | Accepted: 21/07/2025 | Published: 23/09/2025
Received: 4/06/2024 | Accepted: 21/07/2025 | Published: 23/09/2025
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This is an open access article distributed under the terms of the Creative Commons Attribution License (CC-By-NC), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
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