The effectiveness of a collaborative consultation approach to basic concept instruction with kindergarten children was investigated. Following 8 weeks of intervention by a school speech-language pathologist, university faculty, a classroom teacher, and a physical education teacher, children in the experimental group demonstrated significantly higher performance on target concepts than a control group who received the regular education program. Suggestions for further use of the approach are discussed.
Effects of gender on listeners' judgments of intelligibility were investigated. Subjects (15 women; 15 men) provided magnitude-estimation scaling responses and over-all impression of the intelligibility of a male and female speaker's comparable versions of audiotaped speech samples varying systematically in terms of the number of phonemes produced correctly. There was no significant difference between male and female subjects' magnitude-estimation scaling responses; however, their over-all impressions of the intelligibility of the speakers tended to differ. Women indicated that the male speaker was more understandable, and men indicated that the female speaker was more understandable. Magnitude-estimation scaling may provide an objective means for evaluating a speaker's intelligibility. It appears to transcend gender-biases associated with judgments of speech intelligibility.
Fifteen speech-language pathologists with extensive experience judging speakers' intelligibility and 15 control subjects with no such previous experience provided magnitude-estimation responses for two sets of nine audiotaped speech samples. These samples were three utterances composed of a group of 17 words that contained all the consonant phonemes of English. These words were arranged to form a set of either meaningful or nonsense utterances. Nine separate versions of both the meaningful and nonsense utterances were created by systematically increasing the number of phonemes produced incorrectly on each of the nine recordings. The analysis indicated no significant difference between the magnitude-estimation scaling responses of experienced and inexperienced listeners. A significant over-all difference was found for listeners' responses to meaningful versus nonsense utterances. The advantages of magnitude-estimation scaling as a measure of speakers' intelligibility are discussed.
In a controlled experiment, students in two sections of introductory sociology were exposed either to conventional classroom lectures or to the same lectures broadcast live in an adjacent room on a television monitor. Except for the first round of six lectures, when technical problems appeared to have lowered test performance by the experimental groups, learning under the two lecturing modes was statistically equivalent. Self-reported class attendance, also, seemed to have been unaffected by lecturing modes. This study confirms the general pattern of results from a number of prior, albeit less rigorously designed, studies of live vs. televised lecture courses.
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