@article{ref1,
title="A Rasch analysis of the Harm Reduction Self-Efficacy Questionnaire in Portugal",
journal="Addictive behaviors",
year="2014",
author="Lopes, Paulo and Prieto, Gerardo and Delgado, Ana R.",
volume="39",
number="10",
pages="1500-1503",
abstract="INTRODUCTION: A high degree of self-efficacy is required from drug users if they are to adopt long-term abstinence-maintaining or harm-reducing behaviors. Our objective was to analyze the psychometric quality of the Harm Reduction Self-Efficacy Questionnaire (HRSEQ) with the Rating Scale Model (RSM), an extension of the Rasch Model for polytomous items. <br><br>METHODS: Participants were 419 drug dependents from both harm reduction low threshold methadone program and therapeutic community programs in Portugal (84.5% male). <br><br>RESULTS: Greater risk perception was associated with a higher odds of planning to quit within 6months (AOR=1.34, CI.95=1.24, 1.45). Smoking level did not moderate this association (p=.85). <br><br>CONCLUSIONS: After recoding the rating scales by collapsing the eleven categories into four, the HRSEQ scores show good model fit and psychometric adequacy.<p /> <p>Language: en</p>",
language="en",
issn="0306-4603",
doi="10.1016/j.addbeh.2014.05.014",
url="http://dx.doi.org/10.1016/j.addbeh.2014.05.014"
}