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  • Title: A comparison of reinforcer assessment methods: the utility of verbal and pictorial choice procedures.
    Author: Northup J, George T, Jones K, Broussard C, Vollmer TR.
    Journal: J Appl Behav Anal; 1996; 29(2):201-12. PubMed ID: 8682736.
    Abstract:
    We compared three methods of stimulus preference assessment for verbal children and specifically evaluated the utility of a verbal choice procedure for assessing relative reinforcer value. Using a token system, relative preference for five categories of reinforcers, representing 15 different stimuli, was assessed by three methods: a reinforcer survey, a verbal stimulus-choice questionnaire, and a pictorial stimulus-choice procedure. Results showed that the verbal and pictorial stimulus-choice assessments accurately identified high- and low-preference categories for 3 of 4 participants. Survey results alone often rated multiple categories as high preference, were less likely to identify low-preference categories, and were less likely to correspond with the results of a reinforcer assessment.
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