Abstract
A PsycINFO search was conducted on all articles published prior to June,
2001 to identify studies concerning the effects of choice opportunities
for persons with developmental disabilities. Seven studies were reviewed
that attempted to separate the effects of choice from the effects of preference
by comparing behaviour during performance of a chosen task with behaviour
during performance of that same task when it was assigned. Across all seven
studies, a total of 23 children and adults with developmental disabilities
participated. Fourteen of those individuals did not show a choice effect,
and nine individuals did show a choice effect. Factors that may be correlated
with a choice effect are discussed. A behavioural explanation of a choice
effect is proposed that accounts for the inconsistent effects of choice
identified in this review and that has implications for the design of future
research. (PsycINFO Database Record (c) 2004 APA, all rights reserved)
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