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Effects of fixed versus random condition sequencing during multielement functional analyses.

Jennifer L Hammond¹, Brian A Iwata, Griffin W Rooker

¹STANFORD UNIVERSITY SCHOOL OF MEDICINE.

Journal of Applied Behavior Analysis

|October 12, 2013

Summary

A fixed condition sequence in functional analyses (FAs) can help identify behavior patterns more quickly or exclusively for some individuals with developmental disabilities. This fixed sequence approach is recommended for multielement FAs.

Keywords:

establishing operations functional analysis multielement design problem behavior sequence effects

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Area of Science:

Behavior Analysis
Developmental Disabilities
Applied Behavior Analysis

Background:

Multielement functional analyses (FAs) are used to assess behavior.
The order of conditions in FAs may influence outcomes.
Empirical examination of condition sequence effects in FAs is lacking.

Purpose of the Study:

To empirically investigate the effects of fixed versus random condition sequences in multielement functional analyses.
To determine if condition sequence influences assessment outcomes for individuals with developmental disabilities.

Main Methods:

Conducted fixed- and random-sequence functional analyses (FAs) for 7 individuals with developmental disabilities.
The fixed sequence involved a predetermined order: ignore, attention, play, and demand.
The random sequence involved a randomly determined order of experimental conditions.

Main Results:

Condition sequence did not influence FA outcomes for 3 subjects.
Differential responding emerged faster under the fixed sequence for 1 subject.
Differential responding emerged only under the fixed sequence for 3 subjects.

Conclusions:

A fixed condition sequence can influence the emergence of differential responding in multielement FAs.
The fixed sequence may be more effective in accommodating establishing operations.
Implementing a fixed sequence is a simple modification recommended for multielement FAs.