Date of Award


Degree Type


Degree Name

Master of Science (MS)


Speech, Language, and Hearing Sciences

Committee Chair

Oliver Wendt

Committee Co-Chair

Michelle Gutmann

Committee Member 1

Jiyeon Lee


The purpose of this study was to evaluate the effects of a mobile tablet device and an Augmentative and Alternative Communication (AAC) application on the communicative abilities and quality of life of individuals with acquired communication disorders. A preexperimental single subject research design was replicated across one client with progressive dysarthria, and two clients with non-fuent aphasia to investigate effects of specifc communicative abilities (message intelligibility for the client with dysarthria and correct information units for the clients with aphasia) in addition to quality of life. Results suggest that improvements were noted in percent message intelligibility and correct information units across clients after the implementation of an AAC application. Additionally, improvements were also noted in quality of life measures post-intervention with the AAC app. These fndings suggest positive effects of intervention using an AAC application on the communicative abilities and quality of life of clients with acquired communication disorders. This pattern is consistent with previous research in the feld of AAC technology. These results are discussed in regards to clinical applications and research directions.