A comparison of preference assessments and rank orde

This study replicated the response-restriction free-operant procedures of Hanley et al. (2003) and expanded their study by comparing the results to that of a paired choice and multiple stimulus without replacement preference assessments. I also compared the results to a modified version of the Hanley et al. procedures. A statistical analysis was conducted with the hierarchies identified from each assessment using the Spearman Rank order to measure the correlation within and across participants. Finally, I analyzed the results of 32 free operant preference assessments to identify at what point preference was identifiable.