Variable | Time Groups | Posttest | Pretest | Mean difference | Statistic ta &p |
---|---|---|---|---|---|
M ± SD | M ± SD | ||||
Knowledge about search operators | Intervention | 0.37 ± 0.09 | 0.67 ± 0.07 | 0.30 | t = 5.08 p = 0.001 |
 | Control | 0.25 ± 0.08 | 0.34 ± 0.17 | 0.09 | t = 1.21 p = 0.23 |
 | Statistic tb & p | t = 1.54 p = 0. 12 | t = 8.39 p = 0. 001 |  |  |