Variables Predicting the Social Validity of Treatment

Youmans, Scott and Youmans, Gina and Hancock, Adrienne (2010) Variables Predicting the Social Validity of Treatment. [Clinical Aphasiology Paper]

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Abstract

The purpose of this investigation was to determine which aspects of a client’s speech corresponded to rater judgments about the quality of her speech. Raters judged speech samples of a woman with apraxia with varying levels of correctness, number of errors, and rate. Judgments were made on the understandability, ease of production, naturalness, and overall quality of speech. Naïve listeners appeared to perceive struggle behaviors as negative, increased speech output (including repetitions and empty speech) as positive, faster speech (closer to a normal speaker’s average word per minute) preferable to slow speech, and more understandable speech as better quality speech.

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