Date of Award

Spring 5-15-2020

Document Type

Thesis (699 registration)

Degree Name

Master of Science in Speech-Language Pathology


Graduate Studies

Committee Chair

Joni Mehrhoff


Evidence-Based Practice, Speech-Language Pathology, LSVT Loud, SPEAK OUT!®


This study utilized a phenomenological design to understand the process through which speech-language pathologists choose between LSVT Loud and SPEAK OUT!® approaches when providing treatment to individuals with Parkinson’s disease. Semi-structured interviews revealed that participants utilize the three components of the evidence-based practice triangle; however, client characteristics such as cognitive decline and progression of the disease were strongly considered by the participants when selecting between the two approaches. These themes and other considerations will be discussed as part of the overall participant experiences when selecting either LSVT or SPEAK OUT!®. Recommendations for future research include completing a larger study that can be externally generalized. This information may help patients and caregivers better understand the process through which SLPs pull together knowledge of current evidence, previous clinical experience, and client characteristics and preferences.