Effect of Weekly Peer Tutoring on Students’ Test Scores
| Student group | Average initial test score | Average score after tutoring | Percentage change (%) |
|---|---|---|---|
| High-achieving students | 92 | 95 | 3.3 |
| Midlevel students | 78 | 83 | 6.4 |
| Struggling students | 56 | 68 | 21.4 |
School researchers introduced a weekly peer-tutoring program and concluded that the program is especially beneficial for students who had previously been struggling academically.
Which choice best describes data from the table that support the researchers’ conclusion?