Although many neurotypical children acquire untaught word-object relations incidentally from naturally occurring environmental experiences, many children with and without developmental disabilities require specific intervention. This study examined the effects of rotating listener (match and point) and speaker (tact and intraverbal-tact) responses with added echoics during multiple exemplar instruction (MEI) with training sets of stimuli on the acquisition of Incidental Bidirectional Naming (Inc-BiN). Listener-speaker MEI procedures reported in Hawkins et al. European Journal of Behavior Analysis, 10(2), 265-273, (2009) were replicated with procedural modification, new instructors, and new participants (four preschoolers with and without disabilities). The listener-speaker MEI with added echoics consisted of rotating across four response operants: match-with-echoics, point-with-echoics, tact, and intraverbal-tact responses. We measured the establishment of Inc-BiN through the number of the correct untaught listener (point) and untaught speaker (intraverbal-tact) responses for untaught stimuli during the listener-speaker MEI with added echoics. We found that listener-speaker MEI with added echoics was effective in establishing Inc-BiN for 3 of 4 participants.
Keywords: Bidirectional naming; Echoics; Multiple exemplar instruction; Unidirectional naming.
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