Preliminary psychometric evaluation of the patient reported experience measure for addiction treatment (PREMAT).
INTRODUCTION
Patient-reported experience measures (PREMs) are recommended for use in evaluating person-centred care. To date, a PREM has not been validated for residential alcohol and other drug (AOD) treatment. Utilising items developed through a previously published qualitative study informing the development of the PREM for Addiction Treatment (PREMAT), the current study conducted a psychometric evaluation and validation of the PREMAT.


DESIGN AND METHODS
Cross-sectional survey data were collected from six Australian residential AOD treatment facilities (N = 178). Psychometric evaluation included examining the factor structure, internal consistency, and construct validity of the PREMAT. Test re-test reliability was conducted at one treatment site (n = 24).


RESULTS
The total PREMAT score demonstrated strong internal consistency (α = 0.91). Principle components analysis identified six factors (all α > 0.72). The PREMAT total score and factor scores were negatively skewed. Concurrent validity was demonstrated by strong positive correlations with measures of satisfaction (ρ = 0.81, Client Satisfaction Questionnaire-8; ρ = 0.78, Treatment Perceptions Questionnaire), and divergent validity was demonstrated with weaker correlations with Drug-Taking Confidence Questionnaire (ρ = 0.25) and Kessler-10 (ρ = -0.20). Test-retest reliability was strong for the total PREMAT (ρ = 0.89).


DISCUSSION AND CONCLUSIONS
Results support the use of the PREMAT as a valid measure of experience in residential AOD treatment settings. Future research should examine the use of the PREMAT across the course of treatment to examine if experience is related to client characteristics, outcome, dropout or re-engagement in treatment.
['Kelly|Peter J|PJ|', 'Hatton|Emma L|EL|', 'Hinsley|Kate|K|', 'Davis|Esther|E|', 'Larance|Briony|B|']
D001315:Australia D003430:Cross-Sectional Studies D006801:Humans D000071066:Patient Reported Outcome Measures D011594:Psychometrics D015203:Reproducibility of Results D011795:Surveys and Questionnaires
Alcohol Satisfaction Quality improvement Residential rehabilitation Substance dependence Therapeutic community Treatment experience