Date of Award


Document Type


Degree Name

Master of Science (MS)


Communication Sciences & Disorders


This study was designed to analyze and compare two objective methods of recording clinician-client interaction: The Boone and Prescott System and the Analysis of Behaviors of Clinician (ABC) System, in terms of the information each system presents. Since eight categories on both systems are similar, the systems were analyzed using the eight similar categories, then analyzed using all categories in both systems. The systems were analyzed in terms of total number of observations and rank order of categories.

Subjects for this study were eight undergraduate clinicians from the Department of Speech Pathology and Audiology at the University of North Dakota. The clinicians were involved in articulation and language therapy with clients from four to six years of age. Each clinician was videotaped for ten consecutive minutes during each of three forty-minute therapy sessions. Each ten-minute sample was analyzed using both objective systems of recording clinician-client interaction.

When the total number of observations from the entire Boone and Prescott System and the entire ABC System were compared, the difference was nonsignificant at tlie .05 significance level. However, when only the eight similar categories of both systems were compared, the Boone and Prescott System yielded significantly more observed behaviors at the .01 significance level. When the similar behaviors from each system were compared, a significant difference at the .05 level resulted in three categories and at the .01 level in one category.