Validation of an Inventory of Best Practices in the Provision of Augmentative and Alternative Communication Services to Students With Severe Disabilities in General Education Classrooms

Abstract

To compile and then validate a set of evidence-based best practices related to augmentative and alternative communication (AAC) and its role in fostering the inclusion of students with severe disabilities in general education classrooms and other inclusive settings. A comprehensive review of the literature pertaining to AAC and inclusive education for students with severe disabilities in inclusive classrooms resulted in an inventory of possible best practices. Reliability testing was conducted to verify levels of evidence assigned to each source and corresponding practice. Practices were reviewed and validated by a panel of 8 experts. Statistical analysis revealed a high level of internal consistency across items composing the inventory. An inventory of 91 practices, each assigned to 1 of 8 predetermined categories, was uncovered. Themes arising in experts' comments related to items in the inventory are discussed. Possible uses of the inventory are discussed along with suggestions for future research.