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Psychometric Properties of the Adjective Rating Scale for Withdrawal Across Treatment Groups, Gender, and Over Time.

Journal of Substance Abuse Treatment 2014;46(2):251–256.
[doi: 10.1016/j.jsat.2013.08.020]

Celestina Barbosa-Leiker, PhD, Sterling McPherson, PhD, Mary Rose Marney, MA, G. Leonard Burns, PhD, John M. Roll, PhD (all from Washington State University, PN Node).

The Adjective Rating Scale for Withdrawal (ARSW) is commonly used to assess opiate withdrawal in clinical practice and research. This study aimed to examine the factor structure of the ARSW, test measurement invariance across gender and treatment groups, and assess longitudinal measurement invariance across the clinical trial. Secondary data analysis of National Drug Abuse Treatment Clinical Trials Network protocol CTN-0003, a randomized clinical trial comparing two tapering strategies for buprenorphine/naloxone, was performed. The ARSW was analyzed at baseline, end of taper, and 1-month follow-up (n=515 opioid-dependent individuals). A 1-factor model of the ARSW fit the data and demonstrated acceptable reliability. Measurement invariance was supported across gender and taper groups. Longitudinal measurement invariance was not found across the course of the trial, with baseline assessment contributing to the lack of invariance.

Conclusions: The ARSW appears to be measuring withdrawal equivalently across gender and buprenorphine/naloxone taper periods in opioid-dependent individuals. The authors recommend that researchers and clinicians using this tool analyze ARSW total scores across groups at each time point separately. If changeover time is of interest, change from post-treatment through follow-up may offer the most valid comparison; pre-treatment ARSW values may not be assessing withdrawal in the same way as post-treatment and follow-up values. Future research is needed to replicate these findings in other trials, in various clinical settings, and across other demographic groups in order to fully assess the measurement properties of the ARSW. (Article (Peer-Reviewed), PDF, English, 2013)

Keywords: Adjective Rating Scale for Withdrawal (ARSW) | Buprenorphine/Naloxone | CTN platform/ancillary study | Gender differences | Opioid dependence | Screening and assessment instruments | Suboxone | Withdrawal syndrome| Journal of Substance Abuse Treatment (journal)

Document No: 1028, PMID: 24074852, PMCID: PMC3870009.

Submitted by CTN Dissemination Librarians, 10/7/2013.

AUTHORS SEARCH LINK
Barbosa-Leiker, Celestina search mail
Burns, G. Leonard search
Mamey, Mary Rose search
McPherson, Sterling search mail
Roll, John search mail
PROTOCOLS
NIDA-CTN-0003 search www

Supported by a grant from the National Institute on Drug Abuse to the University of Washington Alcohol and Drug Abuse Institute.
The materials on this site have neither been created nor reviewed by NIDA.
Updated 3/8/2016 -- http://ctndisseminationlibrary.org/display/1028.htm
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