TY - JOUR
T1 - Versatility and exploratory psychometric properties of the Impulsive/Premeditated Aggression Scale (IPAS)
T2 - A review
AU - Cruz, Ana Rita
AU - Castro-Rodrigues, Andreia de
AU - Rundle, Brian
AU - Berrios-Torres, Ioannisely
AU - Gonçalves, Rui Abrunhosa
AU - Barbosa, Fernando
AU - Stanford, Matthew S.
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/7/1
Y1 - 2019/7/1
N2 - Aggression has different conceptualizations and can be behaviorally expressed in diverse ways. Designed to evaluate impulsive and premeditated forms of aggression, the Impulsive/Premeditated Aggression Scale (IPAS; Stanford et al., 2003) is a 30 item self-report questionnaire. The aim of the present study was to explore IPAS versatility in different psychological settings by reviewing and examining the exploratory psychometric properties of the IPAS impulsive and premeditated subscales, across different samples and cultural backgrounds. Fifty-two articles including demographic or psychometric information (internal consistency, factor analysis, validity, reliability) were retrieved. It is suggested that the IPAS is reliable across different cultures, samples and scoring techniques. The two subscales (Impulsive and Premeditated) show acceptable internal consistency. Also, IPAS factors seem to be constant both in clinical and non-clinical samples. The IPAS appears to be a clinically useful instrument for differentiating between subtypes of aggressive behavior, to support risk assessment evaluations, pretrial decisions and better treatment and rehabilitation strategies in offenders and clinical relevant samples.
AB - Aggression has different conceptualizations and can be behaviorally expressed in diverse ways. Designed to evaluate impulsive and premeditated forms of aggression, the Impulsive/Premeditated Aggression Scale (IPAS; Stanford et al., 2003) is a 30 item self-report questionnaire. The aim of the present study was to explore IPAS versatility in different psychological settings by reviewing and examining the exploratory psychometric properties of the IPAS impulsive and premeditated subscales, across different samples and cultural backgrounds. Fifty-two articles including demographic or psychometric information (internal consistency, factor analysis, validity, reliability) were retrieved. It is suggested that the IPAS is reliable across different cultures, samples and scoring techniques. The two subscales (Impulsive and Premeditated) show acceptable internal consistency. Also, IPAS factors seem to be constant both in clinical and non-clinical samples. The IPAS appears to be a clinically useful instrument for differentiating between subtypes of aggressive behavior, to support risk assessment evaluations, pretrial decisions and better treatment and rehabilitation strategies in offenders and clinical relevant samples.
KW - IPAS versatility
KW - Impulsive aggression
KW - Premeditated aggression
KW - Psychometric properties
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U2 - 10.1016/j.avb.2019.03.003
DO - 10.1016/j.avb.2019.03.003
M3 - Review article
AN - SCOPUS:85063044115
SN - 1359-1789
VL - 47
SP - 12
EP - 20
JO - Aggression and Violent Behavior
JF - Aggression and Violent Behavior
ER -