Correlation Analysis
Formula based on Raw Scores Formula based on Percentile Ranks. core1stgrp * oldformgrp Crosstabulation Count oldformgrp Total .00 1.00 core1stgrp 1.00 11 29 40 .00 31 12 43 Total 42 41 83 r = .63 r = .64. So the new formula score, based on percentile ranks is as valid as the old formula score. ................
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