Psychometric Validation of the TEAS and CATS Recovery Scales among Individuals with Substance Use Disorders in a Nigerian Tertiary Hospital

Abstract

Context: Reliable measurement tools are critical for assessing the efficacy of substance use disorder (SUD) treatments, especially in low-resource settings. The Treatment Efficacy Assessment Scale (TEAS) and Clinical and Treatment Satisfaction Scale (CATS) were developed to monitor recovery domains and treatment satisfaction among individuals receiving addiction care.This study evaluated the psychometric properties and construct validity of the TEAS and CATS instruments among patients undergoing treatment for SUDs at Aminu Kano Teaching Hospital, Nigeria.

Materials and Methods: A cross-sectional sample of 201 respondents completed both TEAS and CATS. Internal consistency was assessed using Cronbach’s alpha. Factor structure was examined using principal component analysis (PCA) with Varimax rotation. Construct validity was assessed through correlational and logistic regression analyses involving clinical variables (e.g., comorbidities, legal issues, and functioning domains).

Results: TEAS demonstrated acceptable internal consistency (α = 0.74) and a unidimensional factor structure. CATS showed excellent reliability (α = 0.90) with a single extracted component. Both tools demonstrated significant correlation with objective clinical indicators and patient-reported outcomes, thereby supporting their construct validity. These findings support the routine clinical use of TEAS and CATS for outcome monitoring in Nigerian addiction care settings.