The Behaviour Problems Inventory-Short Form: Reliability and Factorial Validity in Adults with Intellectual Disabilities

J Appl Res Intellect Disabil. 2015 Nov;28(6):561-71. doi: 10.1111/jar.12152. Epub 2015 Mar 10.

Abstract

Background: The Behaviour Problems Inventory-Short Form (BPI-S) is a spin-off of the BPI-01 that was empirically developed from a large BPI-01 data set. In this study, the reliability and factorial validity of the BPI-S was investigated for the first time on newly collected data from adults with intellectual disabilities.

Methods: The sample consisted of 232 adults with intellectual disabilities who represented all levels of intellectual functioning. They were recruited at several day programs in the USA (n = 148) and the UK (n = 84).

Results: We found acceptable reliability in terms of internal consistency, inter-rater agreement and test-retest reliability. Confirmatory factor analysis validated the three BPI-S subscale structure.

Conclusions: We corroborated the factor structure underly-ing the three subscales and found the BPI-S to have adequate to good psychometric properties in a newly collected sample of adults with intellectual disabilities.

Keywords: aggression; assessment; behavior problems inventory; intellectual disability; psychometric; self-injurious behavior.

Publication types

  • Multicenter Study

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aggression / psychology
  • Factor Analysis, Statistical
  • Female
  • Humans
  • Intellectual Disability / diagnosis*
  • Intellectual Disability / psychology*
  • Male
  • Middle Aged
  • Problem Behavior / psychology*
  • Psychometrics
  • Reproducibility of Results
  • Self-Injurious Behavior / diagnosis
  • Self-Injurious Behavior / psychology
  • Severity of Illness Index
  • Surveys and Questionnaires / standards*
  • United Kingdom
  • United States
  • Young Adult