| Area |
Effect Size |
Percentile Gain |
| Cooperative Learning |
1.25 for higher level thinking |
50 to 87 percentile |
| Cooperative Learning |
.78 for an overall effect |
50 to 77 percentile |
| Cooperative Learning |
.95 for increased self concept |
50 to 85 percentile |
Cooperative Learning |
.45 for standardized tests |
50 to 65 percentile |
| Explicit Objectives |
.82 enhancing student beliefs |
50 to 80 percentile |
| Explicit Objectives |
.71 writing process |
50 to 76 percentile |
| Providing Clear Goals |
1.09 on reading process |
50 to 86 percentile |
| Goal Specification |
.97 on metacognition |
50 to 84 percentile |
Feedback |
1.00 for reading process |
50 to 84 percentile |
| Feedback |
.48 general effect for feedback |
50 to 66 percentile |
| Feedback |
1.01 one exposure to new word |
50 to 84 percentile |
| Feedback |
1.60 for two exposures |
50 to 94 percentile |
| Feedback |
2.17 for three exposures |
50 to 98 percentile |
| Process Monitoring |
.99 beliefs about performance |
50 to 84 percentile |
| (Verbal) |
1.38 enhance performance |
50 to 92 percentile |
Advanced Organizers |
.48 on details |
50 to 66 percentile |
| Advanced Organizers |
.78 for organizing ideas |
50 to 77 percentile |
Semantic Mapping |
2.27 for vocabulary terms |
50 to 99 percentile |
| Graphic Representations |
1.24 overall effect |
50 to 89 percentile |
Manipulatives |
.89 overall effect |
50 to 79 percentile |