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EFFECTS OF FIXED VERSUS RANDOM CONDITION SEQUENCING DURING MULTIELEMENT FUNCTIONAL ANALYSES
Author(s) -
Hammond Jennifer L.,
Iwata Brian A.,
Rooker Griffin W.,
Fritz Jennifer N.,
Bloom Sarah E.
Publication year - 2013
Publication title -
journal of applied behavior analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 76
eISSN - 1938-3703
pISSN - 0021-8855
DOI - 10.1002/jaba.7
Subject(s) - sequence (biology) , random sequence , psychology , mathematics , genetics , biology , distribution (mathematics) , mathematical analysis
It has been suggested that a fixed condition sequence might facilitate differential responding during multielement functional analyses (FAs) by capitalizing on or limiting sequence effects (Iwata, Pace, et al., 1994); however, the effects of condition sequence have not been examined empirically. We conducted fixed‐ and random‐sequence FAs for 7 individuals with developmental disabilities to determine the relative effects that sequence may have on assessment outcomes. Experimental conditions during the fixed sequence were conducted in the following order: ignore, attention, play, and demand; condition order during the random sequence was determined randomly. Results showed that sequence had no influence on the FA outcomes for 3 subjects, whereas differential responding emerged either faster (1 subject) or only (3 subjects) under the fixed sequence for the remaining subjects. These results suggest that the fixed sequence, a simple modification, should be used when conducting multielement FAs to accommodate the influence of establishing operations across assessment conditions.

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