Abstract
33,339 students at the Univ. of Mich. have deceived speech examinations during the past 10 yrs. The incidence of clinically defective speech was 3.85%. 50.7% were articulation cases, 25.48% were stutterers, 15.04% were voice cases, and 8.75% were miscellaneous cases such as cleft palate and foreign accent. The number of speech defectives screened out during the 10-yr. period has decreased. Males outnumber females.

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