Table 2:
Group Mean and Standard Deviation (SD) values for all measures
| Simple Verbal Span | Simple Visuo-Spatial Span | Complex Verbal Span | Complex Visuo-Spatial Span | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 3.0 | 0.8 | 2.8 | 1.1 | 2.2 | 0.9 | 1.9 | 1.1 | |||||
| NH | 29 | 3.9 | 1.5 | 3.1 | 1.3 | 2.8 | 1.1 | 2.2 | 1.0 | ||||
| z scores | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||||
| CI | 25 | −0.39 | 0.64 | −0.12 | 0.89 | −0.32 | 0.85 | −0.15 | 1.07 | ||||
| NH | 29 | 0.34 | 1.14 | 0.10 | 1.09 | 0.28 | 1.05 | 0.13 | 0.94 | ||||
| WISC-PC | WISC-MR | PPVT | |||||||||||
| Raw scores | Mean | SD | Mean | SD | Mean | SD | |||||||
| CI | 25 | 13.4 | 3.3 | 16.6 | 5.9 | 104.1 | 24.8 | ||||||
| NH | 29 | 15.1 | 4.4 | 17.3 | 5.9 | 140.1 | 20.2 | ||||||
| z scores | Mean | SD | Mean | SD | Mean | SD | |||||||
| CI | 25 | −0.23 | 0.8 | −0.06 | 1.0 | −0.67 | 0.9 | ||||||
| NH | 29 | 0.19 | 1.1 | 0.05 | 1.0 | 0.58 | 0.7 | ||||||
WISC-PC is Wechsler Intelligence Scale for Children, Picture Concepts test, WISC-MR is Wechsler Intelligence Scale for Children, Matrix Reasoning test and PPVT is the Peabody Picture Vocabulary Test.