Table 3.
Descriptive statistics for baseline, posttest, and maintenance variables across groups.
| Variable | Total | Control | Intervention | ||
| Pretest session | |||||
|
|
OMPa (percentage of correct responses), mean (SD); range | 22.33 (4.30); 20-30 | 22 (4.14); 20-30 | 22.67 (4.58); 20-30 | |
|
|
SKIL variables | ||||
|
|
|
Knowledge, mean (SD); range | 1.28 (0.47); 0.50-2.25 | 1.48 (0.49); 0.63-2.25 | 1.08 (0.37); 0.38-1.63 |
|
|
|
Confidence, mean (SD); range | 1.19 (0.61); 0-2.13 | 1.42 (0.60); 0.13-2.25 | 0.97 (0.54); 0-1.63 |
|
|
|
Usefulness, mean (SD); range | 1.73 (0.60); 0.38-2.75 | 1.83 (0.60); 0.38-2.5 | 1.63 (0.61); 0.5-2.75 |
| Posttest session | |||||
|
|
OMP | ||||
|
|
|
Percentage of correct responses (% correct), mean (SD); range | 75.67 (22.08); 40-100 | 63.33 (22.64); 50-100 | 88.00 (22.62); 40-100 |
|
|
|
Generalization, percentage of correct responses, mean (SD); range | 76.33 (24.70); 30-100 | 66.00 (22.62); 30-100 | 86.67 (22.89); 50-100 |
|
|
SKIL variablesb | ||||
|
|
|
Knowledge, mean (SD); range | 2.36 (0.52); 1.25-3 | 2.27 (0.53); 1.25-2.88 | 2.45 (0.51); 1.5-3 |
|
|
|
Confidence, mean (SD); range | 2.23 (0.51); 1.38-2.88 | 2.04 (0.52); 1.25-2.75 | 2.41 (0.45); 1.5-2.88 |
|
|
|
Usefulness, mean (SD); range | 2.70 (0.32); 1.88-3 | 2.68 (0.35); 1.88-3 | 2.72 (0.30); 2-3 |
| Maintenance session | |||||
|
|
OMP | ||||
|
|
|
Percentage of correct responses, mean (SD); range | 69 (24.96); 30-100 | 54.67 (15.98); 30-100 | 83.33 (24.40); 50-100 |
|
|
|
Generalization, percentage of correct responses, mean (SD); range | 72.33 (25.69); 30-100 | 58 (20.07); 30-100 | 86.67 (22.89); 50-100 |
aOMP: observed mastery probe.
bKnowledge, confidence, and usefulness were determined using 4-point scales from the SKIL Survey [36].