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Variability In Test-Retest Of Maximum Duration Of Sustained /A/ In Children, Elena Diane Norwood

Dissertations and Theses

Maximum phonation time has been widely utilized as a simple clinical evaluation of the vocal function. Its importance has been emphasized by Van Riper (1954), Westlake and Rutherford (1961), Boone (1971), and other authors. A review of the literature revealed three trials of sustained phonation have been utilized by most researchers to determine maximum duration of phonation. Additionally, the review revealed a lack of test-retest reliability in maximum phonation time in children.

The present study was designed to determine the variability in test-retest of maximum duration of· sustained /a/ among prepubescent male and female children. Eighty subjects, twenty at each …