Table 2.
Correlations Between Predictors and GPA in First Year of Pharmacy Program (N = 2,244)
| Variable | First Year GPA | |||
| Uncorrected | Corrected | |||
| r | r2 | r* | r*2 | |
| PCAT Verbal Ability SS | 0.13 | 0.02 | 0.16 | 0.03 |
| PCAT Biology SS | 0.26 | 0.07 | 0.35 | 0.12 |
| PCAT Reading Comprehension SS | 0.17 | 0.03 | 0.24 | 0.06 |
| PCAT Quantitative Ability SS | 0.21 | 0.05 | 0.28 | 0.08 |
| PCAT Chemistry SS | 0.29 | 0.09 | 0.36 | 0.13 |
| PCAT Composite SS | 0.32 | 0.10 | 0.44 | 0.20 |
| PCAT Writing: Conventions of Language | 0.06 | 0.003 | ||
| PCAT Writing: Problem Solving | 0.06 | 0.003 | ||
| Entering GPA: Cumulative | 0.44 | 0.19 | ||
| Entering GPA: Math | 0.28 | 0.08 | ||
| Entering GPA: Science | 0.44 | 0.19 | ||
Abbreviations: SS = scaled score; GPA = grade point average; r = correlation coefficient; r2 = the percent of one variable explainable by another variable
All correlations are weighted means of the correlations for the 22 schools combined based on Fisher's z transformations; the corrected correlations were done using the formula of Cohen et al.5