Table IV.
Categorical moderator analyses for age group relative to the normative mean
| Domain | No infarcts vs. SCI |
SCI vs. stroke |
Stroke vs. no infarcts |
|||
|---|---|---|---|---|---|---|
| Qb | Δ SSb | Qb | Δ SSb | Qb | Δ SSb | |
| Comparison: normative mean | ||||||
| Full scale IQ | 6.13* | 7.2 | 18.86*** | 11.0 | 48.02*** | 18.2 |
| Verbal reasoning | 4.69* | 5.8 | 4.01* | 12.2 | 10.86** | 18.0 |
| Perceptual reasoning | 4.55* | 5.9 | 10.92** | 7.8 | 53.47*** | 13.7 |
| Executive function | 0.003 | 0.4 | 8.01** | 12.5 | 21.25*** | 12.1 |
| Processing speed | 3.21+ | 4.8 | 12.06** | 12.7 | 20.11*** | 17.5 |
| Comparison: sibling or healthy controls | ||||||
| Full scale IQ | – | – | – | – | – | – |
| Verbal reasoning | – | – | – | – | 5.38* | 10.5 |
| Perceptual reasoning | – | – | – | – | 1.57 | 6.4 |
| Executive function | – | – | – | – | 1.98 | 7.1 |
| Processing speed | – | – | – | – | – | – |
Q b = Q statistic for total between heterogeneity; ; *deltaSSb* = between group difference in standard score based on distribution of M = 100 and SD = 15; SCI = silent cerebral infarct.
+
p < .10, *p < .05, **p < .01, ***p < .001.