@article{ref1,
title="Validation of the Impulsive/Premeditated Aggression Scale in Mexican psychiatric patients",
journal="Nordic journal of psychiatry",
year="2014",
author="Romans, Laura and Fresán, Ana and Sentíes, Héctor and Sarmiento, Emmanuel and Berlanga, Carlos and Robles-García, Rebeca and Tovilla-Zarate, Carlos-Alfonso",
volume="69",
number="5",
pages="397-402",
abstract="INTRODUCTION: Aggression has been linked to several psychiatric disorders. None of the available instruments validated in Mexico is able to classify aggression as impulsive or premeditated. The Impulsive/Premeditated Aggression Scale (IPAS) is a self-report instrument designed to characterize aggressiveness as predominately impulsive or premeditated. <br><br>OBJECTIVE: The aim of the study was to determine the validity and reliability of the IPAS in a sample of Mexican psychiatric patients. <br><br>METHOD: A total of 163 patients diagnosed with affective, anxiety or psychotic disorder were included. A principal-component factor analysis was performed to obtain construct validity of the IPAS impulsive and premeditated aggression subscales; convergent validity as well as internal consistency of subscales were also determined. <br><br>RESULTS: The rotated matrix accounted for 33.4% of the variance. Significant values were obtained for convergent validity and reliability of the IPAS subscales. <br><br>CONCLUSION: The IPAS is an adequate instrument, which might be used to differentiate the type of aggressive behavior in Mexican psychiatric patients.<p /> <p>Language: en</p>",
language="en",
issn="0803-9488",
doi="10.3109/08039488.2014.994033",
url="http://dx.doi.org/10.3109/08039488.2014.994033"
}