Table 2.
Parent-Report LEAF Subscale Scores by Age
| LEAF Subscale | 6 – 11 Years | 12 – 17 Years | t | ||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||
| Cognitive-Learning: | |||||
| Comprehension and Conceptual Learning | 6.33 | 3.86 | 5.82 | 3.93 | 0.71 |
| Factual Memory | 6.02 | 3.98 | 6.25 | 4.12 | 0.31 |
| Cognitive-EF: | |||||
| Attention | 9.94 | 4.01 | 8.72 | 4.07 | 1.63 |
| Processing Speed | 8.78 | 3.72 | 8.33 | 3.89 | 0.64 |
| Visual-Spatial Organization | 7.57 | 3.41 | 7.42 | 3.49 | 0.24 |
| Sustained Sequential Processing | 9.06 | 3.86 | 8.58 | 4.15 | 0.64 |
| Working Memory | 8.98 | 3.95 | 8.27 | 4.20 | 0.94 |
| Novel Problem-Solving | 6.61 | 4.03 | 6.34 | 4.36 | 0.34 |
| Academic: | |||||
| Mathematics Skills | 7.41 | 5.30 | 7.34 | 4.99 | 0.07 |
| Basic Reading Skills | 6.45 | 4.79 | 5.25 | 4.84 | 1.34 |
| Written Expression Skills | 8.98 | 4.18 | 8.22 | 4.97 | 0.88 |
Note. Values are raw scores. SD = Standard Deviation. T-tests are comparisons of the two age groups; zero t-tests were statistically significant (df = 116, all p > 0.10)