Journal of substance use and addiction treatment · 2023
Psychometric properties of the Treatment Effectiveness Assessment in methamphetamine use disorder.
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Vo Hoa T, Kulikova Alexandra, Mayes Taryn L, Carmody Thomas, Shoptaw Steve, Ling Walter, Trombello Joseph M, Trivedi Madhukar H
Аннотация
INTRODUCTION: The ability for people living with stimulant use disorder to live meaningful lives requires not only abstinence from addictive substances, but also healthy engagement with their community, lifestyle practices, and overall health. The Treatment Effectiveness Assessment (TEA) assesses components of recovery consisting of four functional domains: substance use, health, lifestyle, and community. This secondary data analysis of 403 participants with severe methamphetamine use disorder tested the reliability and validity of the TEA.
METHODS: Participants were enrolled in the Accelerated Development of Additive Pharmacotherapy Treatment (ADAPT-2) for methamphetamine use disorder. The study used total TEA and domain scores at baseline to assess factor structure and internal consistency, as well as construct validity related to substance cravings (visual analog scale [VAS]), quality of life (quality-of-life assessment [QoL]), mental health (Patient Health Questionnaire-9 [PHQ-9], Concise Health Risk Tracking Scale Self-Report [CHRT-SR16]), and social support (CHRT-SR16).
RESULTS: Individual TEA items showed moderate to large correlations with each other (r = 0.27-0.51; p < .001), and strong correlations to the total score (r = 0.69-0.78; p < .001). Internal consistency was strong (coefficient α = 0.73 [0.68-0.77]; coefficient ω = 0.73 [0.69-0.78]). Construct validity was acceptable, with the strongest correlation between the TEA Health item and the general health status item on the QoL (r = 0.53, p < .001).
CONCLUSIONS: TEA has acceptable levels of reliability and validity supporting prior similar findings in a sample of participants with moderate to severe methamphetamine use disorder. Results from this study provide support for its use in assessing clinically meaningful changes beyond simply reduced substance use.
METHODS: Participants were enrolled in the Accelerated Development of Additive Pharmacotherapy Treatment (ADAPT-2) for methamphetamine use disorder. The study used total TEA and domain scores at baseline to assess factor structure and internal consistency, as well as construct validity related to substance cravings (visual analog scale [VAS]), quality of life (quality-of-life assessment [QoL]), mental health (Patient Health Questionnaire-9 [PHQ-9], Concise Health Risk Tracking Scale Self-Report [CHRT-SR16]), and social support (CHRT-SR16).
RESULTS: Individual TEA items showed moderate to large correlations with each other (r = 0.27-0.51; p < .001), and strong correlations to the total score (r = 0.69-0.78; p < .001). Internal consistency was strong (coefficient α = 0.73 [0.68-0.77]; coefficient ω = 0.73 [0.69-0.78]). Construct validity was acceptable, with the strongest correlation between the TEA Health item and the general health status item on the QoL (r = 0.53, p < .001).
CONCLUSIONS: TEA has acceptable levels of reliability and validity supporting prior similar findings in a sample of participants with moderate to severe methamphetamine use disorder. Results from this study provide support for its use in assessing clinically meaningful changes beyond simply reduced substance use.