A note on the computation of biserialr in item validation |
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| Authors: | Philip H DuBois |
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| Institution: | (1) University of New Mexico, USA |
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| Abstract: | A method of computing biserial coefficients of correlation through the use of punch card tabulating equipment is presented. Each item is assigned a separate column and successes are punched 1. By arranging the cards on the criterion variable and obtaining progressive sums on several columns simultaneously, it is possible to obtain data for several correlations in one run of the cards through the machine. |
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