TY  - JOUR
PY  - 2019//
TI  - Developing and validating a definition of impulsive/reactive aggression in youth
JO  - Journal of clinical child and adolescent psychology
A1  - Young, Andrea S.
A1  - Youngstrom, Eric A.
A1  - Findling, Robert L.
A1  - Van Eck, Kathryn
A1  - Kaplin, Dana
A1  - Youngstrom, Jennifer K.
A1  - Calabrese, Joseph
A1  - Stepanova, Ekaterina
A1  - The Lams Consortium, 
SP  - 1
EP  - 17
VL  - ePub
IS  - ePub
N2  - The goal of this study is to develop a rational data-driven definition of impulsive/reactive aggression and establish distinctions between impulsive/reactive aggression and other common childhood problems. This is a secondary analysis of data from Assessing Bipolar: A Community Academic Blend (ABACAB; <i>N</i> = 636, ages 5-18), Stanley Medical Research Institute <i>N</i> = 392, ages 5-17), and the Longitudinal Assessment of Manic Symptoms (LAMS; <i>N</i> = 679, ages 6-12) studies, which recruited youths seeking outpatient mental health services in academic medical centers and community clinics. Following Jensen et al.'s (2007) procedure, 3 judges independently rated items from several widely used scales in terms of assessing impulsive/reactive aggression. Principal components analyses (PCA) modeled structure of the selected items supplemented by items related to mood symptoms, rule-breaking behavior, and hyperactivity/impulsivity to better define the boundaries between impulsive/reactive aggression and other common childhood symptoms. In the rational item selection process, there was good agreement among the 3 experts who rated items as characterizing impulsive/reactive aggression or not. PCA favored 5 dimension solutions in all 3 samples. Across all samples, PCA resulted in rule-breaking behavior, aggression-impulsive/reactive (AIR), mania, and depression dimensions; there was an additional hyperactive/impulsive dimension in the LAMS sample and a self-harm dimension in ABACAB and Stanley samples. The dimensions demonstrated good internal consistency; criterion validity coefficients also showed consistency across samples. This study is a step toward developing an empirically derived nosology of impulsive aggression/AIR. <br><br>FINDINGS support the validity of the AIR construct, which can be distinguished from manic and depressive symptoms as well as rule-breaking behavior.<p />  <p>Language: en</p>
LA  - en
SN  - 1537-4416
UR  - http://dx.doi.org/10.1080/15374416.2019.1622121
ID  - ref1
ER  -