@article{ref1,
title="Reliability of the Impulsive-Premeditated Aggression Scale (IPAS) in treated opiate-dependent individuals",
journal="Addictive behaviors",
year="2007",
author="Conner, Kenneth R. and Houston, Rebecca J. and Sworts, Luke M. and Meldrum, Sean",
volume="32",
number="3",
pages="655-659",
abstract="The purpose of the study was to evaluate the internal consistency and test-retest reliability of the Impulsive Aggression (IA) and Premeditated Aggression (PM) scales of the Impulsive-Premeditated Aggression Scale (IPAS) in male and female substance-dependent patients, and to compare the findings to those obtained on widely used, validated measures of aggression. Using a sample of 121 patients (61 women) in methadone maintenance treatment, 69 (35 women) of which were re-evaluated after a minimum of 2weeks, the IPAS scales showed acceptable internal consistency (alpha>.72) and test-retest reliability (ICC>.54). These results were comparable to the other aggression measures, and results among women were comparable to men. This was the first study to examine the IPAS scales in a substance use population, to contain a sufficient sample of women for sub-analyses, and to examine the stability of the measure. Findings support the internal consistency and test-retest reliability of the IPAS in male and female opiate-dependent individuals.<p /><p>Language: en</p>",
language="en",
issn="0306-4603",
doi="10.1016/j.addbeh.2006.06.026",
url="http://dx.doi.org/10.1016/j.addbeh.2006.06.026"
}