title: Psychometric properties and factor structure of the Behavior Problems Inventory (BPI-01) in a Swedish community population of adults with intellectual disability.
abstract: The aim of the present study was to evaluate the psychometric properties and factor structure of the Behavior Problems Inventory (BPI-01) in a community population. The Swedish version of the BPI-01 was administered by interviewing care staff of all adults (n = 915) with administratively defined intellectual disabilities (IDs) living in Örebro County, Sweden. Sixty-two percent of the participants had at least one behavior problem. Altogether, 30.9% showed self-injurious behavior, 41.3% stereotyped behavior, and 34.8% aggressive/destructive behavior. All but the self-injurious behavior scale reached acceptable levels of internal consistency. Confirmatory factor analysis supported the unidimensionality of the subscales as well as the proposed three factor structure of the original BPI-01. The present study demonstrates that the three subscales are highly similar constructs across different language and cultural settings, and that the BPI-01 is applicable in research on populations with varying mental functioning, diagnoses, ages, and living arrangements.
authors.affiliation: Örebro University and Örebro County Council, Örebro, Sweden. lars-olov.lundqvist@orebroll.se
authors.forename: Lars-Olov
authors.initials: LO
authors.lastname: Lundqvist
mesh_terms: D000203:Activities of Daily Living / Q000523:psychology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000374:Aggression / Q000523:psychology*; D019958:Attention Deficit and Disruptive Behavior Disorders / Q000453:epidemiology* / Q000523:psychology*; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology* / Q000523:psychology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011581:Psychological Tests; D011594:Psychometrics / Q000379:methods*; D012720:Severity of Illness Index; D013548:Sweden / Q000453:epidemiology; D055815:Young Adult