Communication Sciences and Disorders Commons^™

Intelligibility Of Speech Produced With An Artificial Larynx At Various Frequencies, Sandra Arlene Merritt

Masters Theses

Word intelligibility scores of 21 listeners were used to test the hypothesis that speech intelligibility will vary systematically across speakers and fundamental frequency of electrolarynx vibration.

Twenty-one listeners transcribed audio recorded lists of CVC utterances produced with an electrolarynx by 3 speakers at each of five fundamental frequencies.

Comparative analysis of scores across frequencies and speakers were discussed in terms of:

a) source transmission characteristics of "electrolaryngeal" speech, b) implications for diagnosis/therapeusis of alaryngeal speakers.

Results indicated that intelligibility scores were significantly different between speakers and between frequencies within speakers. Maximum intelligibility scores were more highly correlated with certain frequencies …

The Effects Of Total Communication On The Expressive Language Behavior Of Individuals Labeled Trainable Mentally Retarded, Lenore Aebischer

Masters Theses

The practice of total communication in language training for non-deaf individuals labeled mentally retarded has been guided by very little empirical evidence. Therefore, the purpose of this study was to determine whether the use of a total communication approach facilitates an increase in the frequency of expressive language behavior in children labeled trainable mentally handicapped. The three subjects studied, one male and two females, were selected on the basis of age and I.Q. They were enrolled in a self-contained, public school which was located in a rural area of Illinois. A multi-element baseline procedure was used. Stimuli were presented using …