4. Discussion
voice
The purpose of this study was to determine if smartphone-app-aided voice therapy delivery improved adherence to the home practice of voice therapy tasks compared to the traditional delivery method. Additionally, usability testing was completed through surveys, “think aloud” methods, and focus-group discussions.A single-blinded randomized clinical trial was completed with normophonic participants (Decisions on the components included in the app interface during the development phase were based on the important work completed by Van Leer and colleagues in the area of investigating the drivers and barriers that influence adherence to voice therapy [Besides ease of use, it is important to address the other intent behind the app which was to develop a modality to improve accessibility to specialty services such as voice therapy. A smartphone-based platform was purposefully chosen based on national statistics. In 2017, a survey from the Pew research center (PRC) demonstrated that 77% of the US population owned a smartphone. This percentage increased to 97% in 2021 [