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Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools

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The Behavior Problems Inventory-Short Form for individuals with intellectual disabilities: part I: development and

J Rojahn¹, E W Rowe, A C Sharber

¹Department of Psychology, George Mason University, Fairfax, Virginia 22030-4444, USA. jrojahn@gmu.edu

Journal of Intellectual Disability Research : JIDR

|December 14, 2011

Summary

The Behavior Problems Inventory-Short Form (BPI-S) offers a user-friendly alternative to the BPI-01 for assessing maladaptive behaviors in individuals with intellectual disabilities. This shorter version maintains high accuracy and provides valuable norms for data interpretation.

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Area of Science:

Psychometrics
Behavioral Science
Intellectual Disabilities Research

Background:

The Behavior Problems Inventory-01 (BPI-01) is an informant-based tool for assessing maladaptive behaviors in individuals with intellectual disabilities (ID).
It comprises three sub-scales: Self-injurious Behavior, Stereotyped Behavior, and Aggressive/Destructive Behavior, rated on frequency and severity scales.
Concerns regarding the BPI-01's length and lack of norms have limited its user-friendliness and interpretation.

Purpose of the Study:

To develop and validate a shorter, more user-friendly version of the BPI-01.
To enhance the objectivity of severity ratings through added anchors.
To provide normative data for improved interpretation of BPI scores.

Main Methods:

Empirical development of the Behavior Problems Inventory-Short Form (BPI-S) using aggregated BPI-01 data from 1122 individuals with ID across nine international locations.
The BPI-S retains the BPI-01's rating system and sub-scales but with reduced item counts.
Added rating anchors for severity scales in Self-injurious Behavior and Aggressive/Destructive Behavior sub-scales.

Main Results:

High sensitivity of the BPI-S compared to the BPI-01 (0.92–0.99).
Strong correlations between analogous BPI-01 and BPI-S sub-scales (0.96–0.99).
Generated means and standard deviations for both BPI versions across sex-by-age and sex-by-ID level matrices, with combined sex ranges provided.

Conclusions:

The BPI-S is a highly effective and practical alternative to the BPI-01.
It is particularly beneficial for research and evaluation purposes involving groups of individuals with ID.
The BPI-S facilitates more user-friendly assessment and interpretation of behavioral problems.