The effect of environment on multiple-stimulus without replacement preference assessments
Preference assessments have been proven to be an effective assessment tool used to identify preferences for individuals with developmental disabilities. There are 4 methods of preference assessments: single-stimulus preference assessment, paired-stimulus preference assessment, multiple stimulus with replacement preference assessment, and multiple stimulus without replacement preference assessment. The current study used the multiple-stimulus without replacement preference assessment to compare identified stimuli across 2 different environments. There were 12 participants exposed to a total of 10 sessions, 5 at home and 5 at school. The research tested for consistency among participant preference of the items chosen across sessions in both locations. The results of the current study were inconclusive; some participants had the same preference across environments and other participants did not have a clear preference in either environment. There were several limitations that may have contributed to the findings. Some of the limitations include the participants' wide range of abilities and disabilities in the scope of their autism. Other limitations include the inability to insure the participants were not over exposed or satiated on the edible items used. Also, some participants did not have a clear preference for items.