Note on computation of bi-serial correlations in item evaluation |
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Authors: | Jack W Dunlap |
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Institution: | (1) Fordham University, New York |
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Abstract: | By the use of an algebraic variant of the ordinary formula for bi-serial correlation, tables, and graphic devices, a time-saving systematic procedure for the computation of bi-serial correlation co-efficients is outlined for application to the evaluation of items of a test. A table of z for arguments ofp=.000 top=.999 is given. |
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