Association of Behavior Analysis International
ISOLATING IMPORTANT PROCEDURAL ELEMENTS WHEN USING A CONDITIONED TRANSITIVE MOTIVATING OPERATION TO TEACH A MAND
Chelsie Parent & Lynn Wilson
ABA & VERBAL BEHAVIOR GROUP
The current study compared the occurrence of unprompted manding for specific toys under a non-treatment condition and two treatment conditions, both using a modified interrupted chain procedure to contrive a conditioned transitive motivating operation (CMO-T). Using a reversal design, the procedure in the first treatment condition consisted of a vocal instruction to complete a pre-trained two-component play sequence. If the instruction was not consistently effective in establishing an MO and a corresponding unprompted mand for a missing item, the second treatment was implemented, which included direct mand training if necessary and a vocal description of an arbitrary terminal reinforcer unrelated to the behavior chain. The non-treatment condition consisted of free access one of the two play sequence items. Participants were two four-year-old children with autism. Results demonstrated no manding for the items during the non-treatment condition, variable unprompted manding under the first condition, and acquisition of consistent unprompted manding during the second condition.