Original Research/StudyChallenges and Successes in Addressing Food Selectivity in Children With Developmental Disabilities During Preschool MealtimesGast, A. Hunter MEd; Shepley, Collin PhD; Lane, Justin D. PhDAuthor Information HOPE Autism and Behavioral Health Services, Brentwood, Tennessee (Ms Gast); and Early Childhood, Special Education, and Rehabilitation Counseling, University of Kentucky, Lexington (Drs Shepley and Lane). Correspondence: Collin Shepley, PhD, Early Childhood, Special Education, and Rehabilitation Counseling, University of Kentucky, 229 Taylor Education Bldg, Lexington, KY 40506 (firstname.lastname@example.org). The authors thank Dr. Mark Wolery for his support in designing this study. The authors declare no conflict of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Web site (www.iycjournal.com). Infants & Young Children: October/December 2020 - Volume 33 - Issue 4 - p 300-312 doi: 10.1097/IYC.0000000000000176 Buy SDC Metrics Abstract We evaluated the effects of a multicomponent intervention to address food selectivity issues of 3 preschoolers with developmental disabilities. The intervention comprised strategies evidencing ecological validity in both research and practice. All sessions took place during typical mealtimes in children's classroom or lunchroom, with peers present, and a school-based staff member serving as the instructor. A multiple probe design across behaviors (touch, smell, taste, and eat), with a nested changing criterion design in the final tier, was used to evaluate changes in eating behaviors. Exploratory behaviors related to eating increased for all children; however, the designed intervention did not result in increased consumption of nonpreferred foods. Modifications resulted in one child demonstrating consistent increases in the consumption of nonpreferred foods, but these modifications did not result in increased consumption for other children. Challenges and future directions in treating food selectivity using resources typically available during mealtimes in preschool settings are discussed. © 2020 Wolters Kluwer Health, Inc. All rights reserved.