Comparison of the predictive validity and consistency among preference assessment procedures: a review of the literature

We reviewed 14 experimental studies comparing different preference assessments for individuals with developmental disabilities that were published in peer-reviewed journals between 1985 and 2012. Studies were summarized based on the following six variables: (a) the number of participants, (b) the type of disability, (c) the number and type of stimuli, (d) the average duration of administration, (e) compared procedures, and (f) results. Studies were also classified in terms of the predictive validity and consistency of the preference assessment results. The results suggest the preference assessment procedures that may produce more accurate predictions for the reinforcing effects of identified stimuli and consistent preference results. The findings are discussed in relation to the previous literature. Evidence based modifications of the most efficient preference assessment are also discussed.