The Behavior Problems Inventory – Short Form (BPI-S) is a shorter version of the Behavior Problems Inventory – 01 (BPI-01). In this paper, BPI-S population norms are reported from a total administrative population of adults with Intellectual Disability (ID). To facilitate the use of the BPI-S in clinical services to assess behaviour change, this paper describes how to use BPI-S clinically significant and reliable change scores.
Data were gathered on 265 adults with ID known to services. Proxy informants completed the BPI-S on challenging behaviours over the previous six months. Clinically significant cut off values and reliable change scores were calculated using the Jacobson and Truax (1991) method.
BPI-S clinical reference data are presented to provide benchmarks for individual and group comparisons regarding challenging behaviour. Examples demonstrate how to use clinical norms to determine change.
Behaviour change is a major goal of researchers and practitioners. Data from the present study can make the BPI-S a valuable tool for determining change in challenging behaviour following service input or intervention.
Whilst well used in research, the BPI-S may be less extensively used in practice. This present study provides data to enable researchers and practitioners to use the BPI-S more widely in assessing clinical outcomes, such as intervention research and service evaluation.
Darren Lee Bowring, Vasiliki Totsika, Richard P Hastings, Sandy Toogood
Tizard Learning Disability Review, 2018