The purpose of this study was to determine if measures of speaking fundamental frequency and its perturbation, as well as selected durational aspects of speech may be used to discriminate normal from abnormal phonation, specifically, in five pairs of talkers matched for age. A spoken sentence and sustained /a/ provided the sample for the acoustic analyses. Fifty glottal waveforms from each subject were measured to determine the mean perturbation of the fundamental frequency for the sustained vowel. The best predictor variables for these subjects from the seven variables analyzed were found to be the vocalic duration of the sentence segment and the mean perturbation for sustained vowels.