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Use of the test scoring machine and the graphic item counter for statistical work |
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| Authors: | Benjamin S. Bloom Ardie Lubin |
| Affiliation: | (1) Board of Examinations, The University of Chicago, USA |
| Abstract: | The graphic item-counter is described and its use as a statistical device is explained. Procedures are presented for obtaining Pearson product-moment correlations by means of the graphic item-counter. |
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