Thesis

An evaluation of topographically similar instructions within the high-probability instructional sequence to increase food acceptance

This study examined the effectiveness of topographically similar instructions within the high-probability instructional sequence (HPIS) to increase food acceptance in two adolescent males with autism. Although previous research has demonstrated the HPIS utilizing topographically similar instructions is effective in increasing food acceptance (e.g., Ewry & Fryling, 2016), this study failed to produce an increase in consumption until the procedure was accompanied with escape extinction in the form of a non-removal of the spoon procedure (e.g., Ahearn et al, 1996; Babbitt et al, 1994). This study replicated previous findings demonstrating escape extinction as a necessary component in increasing food acceptance (Daweson et al., 2003). Results are discussed in terms of procedural variations.

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