RELIABILITY AND VALIDITY OF THE FUNCTIONAL ANALYSIS SCREENING TOOL

The Functional Analysis Screening Tool (FAST) is a 16‐item questionnaire about antecedent and consequent events that might be correlated with the occurrence of problem behavior. Items are organized into 4 functional categories based on contingencies that maintain problem behavior. We assessed interr...

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Bibliographic Details
Published in:Journal of applied behavior analysis 2013-03, Vol.46 (1), p.271-284
Main Authors: Iwata, Brian A., DeLeon, Iser G., Roscoe, Eileen M.
Format: Article
Language:English
Subjects:
Adolescent
Adult
assessment
Behavior
Behavior disorders
Behavior Patterns
Behavior Problems
Behavioral Symptoms - diagnosis
Behavioral Symptoms - physiopathology
Child
Child, Preschool
Children & youth
Families & family life
Female
functional analysis
Humans
Intellectual disabilities
Interviews
Male
Middle Aged
Negative Reinforcement
Positive reinforcement
problem behavior
Psychometrics - methods
Questionnaires
rating scale
Reproducibility of Results
Social interaction
Studies
Surveys and Questionnaires
Validity
Young Adult
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Summary:The Functional Analysis Screening Tool (FAST) is a 16‐item questionnaire about antecedent and consequent events that might be correlated with the occurrence of problem behavior. Items are organized into 4 functional categories based on contingencies that maintain problem behavior. We assessed interrater reliability of the FAST with 196 problem behaviors through independent administration to pairs of raters (Study 1). Mean item‐by‐item agreement between pairs of raters was 71.5%. Agreement for individual items ranged from 53.3% to 84.5%. Agreement on FAST outcomes, based on comparison of informants' highest totals, was 64.8%. We assessed the validity of the FAST by comparing its outcomes with results of 69 functional analyses (Study 2). The FAST score predicted the condition of the functional analysis in which the highest rate of problem behavior occurred in 44 cases (63.8%). Potential uses of the FAST in the context of a clinical interview, as well as limitations, are discussed.
ISSN:0021-8855
1938-3703
1938-3703
DOI:10.1002/jaba.31