Ligia M Chavez1, Pedro Garcia2, Nyrma Ortiz2, Patrick E Shrout3. 1. Behavioral Sciences Research Institute, University of Puerto Rico, Medical Sciences Campus, PO Box 365067, San Juan, PR, 00936-5067, USA. ligia.chavez@upr.edu. 2. Behavioral Sciences Research Institute, University of Puerto Rico, Medical Sciences Campus, PO Box 365067, San Juan, PR, 00936-5067, USA. 3. Department of Psychology, New York University, New York City, NY, USA.
Abstract
PURPOSE: The Adolescent Quality of Life-Mental Health Scale (AQOL-MHS) is designed to measure quality of life in clinical samples of Latino adolescents aged 12-18 years. Initial findings support its reliability, validity and conceptual model for use of its three domains (emotional regulation, self-concept and social context). Our current study tests the usefulness of the AQOL-MHS for tracking changes in HRQOL during the course of service use. METHODS: Three waves of data were collected from 59 participants who were recruited from mental health clinics, where waves were spaced 4 months apart. Participants were receiving services at baseline assessment and were tracked for follow-up appointments regardless of treatment status. We analyze conventional reliability statistics for individual differences (e.g., Cronbach's alpha and test-retest correlations), and to estimate the reliability of change, we carried out a variance decomposition analysis. RESULTS: The psychometric analyses from Chavez et al. (Qual Life Res 23(4):1327-1335, 2014) were replicated with comparable results. A generalizability theory (GT) analysis revealed that the AQOL-MHS domains can measure change reliably. The reliability estimates varied from .65 to .78. Although there was reliable change at the individual level, on the average the AQOL-MHS means improved only slightly over time. CONCLUSIONS: The reliability of change for all three scales in the AQOL-MHS was acceptable, but consistently lower than the Cronbach's alpha values for each wave. Future work will use this approach to adapt our current measure to provide a better reliability of within-person change and thus broaden its applicability for prospective use.
PURPOSE: The Adolescent Quality of Life-Mental Health Scale (AQOL-MHS) is designed to measure quality of life in clinical samples of Latino adolescents aged 12-18 years. Initial findings support its reliability, validity and conceptual model for use of its three domains (emotional regulation, self-concept and social context). Our current study tests the usefulness of the AQOL-MHS for tracking changes in HRQOL during the course of service use. METHODS: Three waves of data were collected from 59 participants who were recruited from mental health clinics, where waves were spaced 4 months apart. Participants were receiving services at baseline assessment and were tracked for follow-up appointments regardless of treatment status. We analyze conventional reliability statistics for individual differences (e.g., Cronbach's alpha and test-retest correlations), and to estimate the reliability of change, we carried out a variance decomposition analysis. RESULTS: The psychometric analyses from Chavez et al. (Qual Life Res 23(4):1327-1335, 2014) were replicated with comparable results. A generalizability theory (GT) analysis revealed that the AQOL-MHS domains can measure change reliably. The reliability estimates varied from .65 to .78. Although there was reliable change at the individual level, on the average the AQOL-MHS means improved only slightly over time. CONCLUSIONS: The reliability of change for all three scales in the AQOL-MHS was acceptable, but consistently lower than the Cronbach's alpha values for each wave. Future work will use this approach to adapt our current measure to provide a better reliability of within-person change and thus broaden its applicability for prospective use.
Entities:
Keywords:
Adolescents; Generalizability theory; Mental health; Quality of life
Authors: Todd C Edwards; Donald L Patrick; Tari D Topolski; Cassandra L Aspinall; Wendy E Mouradian; Matthew L Speltz Journal: Cleft Palate Craniofac J Date: 2005-01
Authors: Ligia M Chavez; Rafael Ramirez; Pedro Garcia; Glorisa Canino; Karen Mir; Nyrma Ortiz; Leo S Morales Journal: Qual Life Res Date: 2013-11-17 Impact factor: 4.147