Master's Theses


Communication Sciences and Disorders

Degree Name

Master of Science (MS)


The purpose of this thesis was to determine if male subjects would raise the fundamental frequency of their voice when given a vocal model by a female clinician. The 42 subjects were divided into four groups and each subject participated in two trials. This design, using these four groups, counter-balanced the data for gender and order effects. The Visi-Pitch Apple Interface (Kay Elemelrics Corporation, 1986) served as the fundamental frequency analyzer for all data. The mean fundamental frequencies produced by each group in Trial 1 and Trial 2 were subjected to an analysis of variance (ANOVA). Results indicated there was a significant group by trial interaction which suggested that the variables were interacting in a complex manner. However, results did indicate that a very high percentage (77%) of all the males in this study did raise the fundamental frequency of their voice when the stimulus provider was a female. This finding indicated the need for documentation or recognition of possible gender interaction when male subjects and female examiners/clinicians participate in data collection of pitch related vocal parameters.


Chuck Wilhelm

Date of Award

Summer 1996

Document Type

Thesis - campus only access


© 1996 Kristin L. Wiebe


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