TABLE 2.
Descriptive statistics for group equivalency measuresa
| Measure of group equivalence | Treatment | Participants (n) | Mean (%) | SD (%) | t(df), p |
|---|---|---|---|---|---|
| Exam 1 | Closed book | 107 | 82.3 | 9.0 | 0.73(147), 0.47 |
| Open book | 42 | 81.1 | 7.8 | ||
| LCTSR | Closed book | 89 | 79.0 | 17.1 | 0 < 0.01(117), 1.00 |
| Open book | 27 | 79.0 | 16.4 | ||
| BKA | Closed book | 91 | 43.9 | 11.9 | 0.11(114), 0.92 |
| Open book | 28 | 44.2 | 14.5 |
aNot all students completed all pretests. Numbers of participants from each treatment are indicated. Independent samples t tests reveal no differences between groups, as indicated.