ITEM ANALYSIS, VCL INTELLIGIBILITY TEST SERIES.
PURDUE RESEARCH FOUNDATION LAFAYETTE IND
Pagination or Media Count:
In the Purdue Voice Science Laboratory it has been found to be desirable to subject the word lists of the VCL Intelligibility Test to item analysis. In order that test words might be used in other arrangements and that different test lists might be assembled which might, in a given population, be predicted to yield intelligibility scores of given values, the following questions were asked about each test word in each list What is the intelligibility value percent of correct responses of this word. How does success in indentifying this word correlate with total listener performance on the intelligibility test. What are the central tendency and variability of listener scores of subjects who successfully identify this word in an intelligibility test. The problem of this investigation is defined in the three questions listed above.
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