Restricted-Response Free Operant Assessment

The percentages of 10-s intervals for the restricted-response free operant assessment were calculated by dividing the total numbers of trials engaged with each item by the total number of trials. Figure 2 and Figure 3 showed the percentage results of the participant engaged in each stimulus. Specifically, Figure 2 showed the engagement percentage for the first session. As shown in Figure 2, participant only engaged with chocolate in the first session and the engagement percentage was high. Figure 3 showed the engagement percentage of 10-s interval for all the other tangible items except edible items. As seen in Figure 3, participant demonstrated different preference on each item and the rank of engagement was ipad, sticker, calendar, toy monkey and toy car. The three edible items were not included in Figure 3 because the item would be removed after choosing 5 consecutive times in the procedure. The maximum percentage of the 10-s trail intervals would be 16.7% if choosing 5 times each session. The three edible items were actually selected 5 times at the beginning of each session and the order of picking up was always chocolate, grape and coke. Therefore, the whole preference hierarchy was ranked as chocolate, grape, coke, ipad, sticker, calendar, toy monkey, toy car and colouring in from …show more content…
The design has been identified alternatively as ‘simultaneous availability of conditions’ and simultaneous treatment design.
During the baseline condition, experimenter removed the participant away from the table and started him at the beginning point (around 1 meter away from table with coloring in task). Thomas coloring paper and crayons were provided on the table. Experimenter then instructed participant by saying ‘You can color in Thomas booklet now’ and started timing immediately. However, there was no reinforcement during the whole

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