Table 4.
Relationship | IQ correlation | N | EF correlation (5 component average) | N | EF correlation (3 component average) | N | Residualized EF correlation (3 component average) | N |
---|---|---|---|---|---|---|---|---|
Parent:offspringa | .45*** | 1014 | .36*** | 698 | .24*** | 705 | .15*** | 806 |
Father:son | .45*** | 344 | .26*** | 232 | .15 | 232 | .05 | 275 |
Mother:son | .42*** | 353 | .45*** | 268 | .35*** | 257 | .31*** | 300 |
Father:daughter | .49*** | 154 | .45** | 92 | .35*** | 103 | .24** | 108 |
Mother:daughter | .49*** | 164 | .22** | 108 | .04 | 106 | -.06 | 123 |
Sibling | .50b*** | 303 | .24*** | 267 | .15* | 267 | .04b | 202 |
Brother:brother | .29*** | 88 | .40*** | 105 | .24** | 105 | .08 | 53 |
Sister:brother | .55*** | 198 | .16** | 151 | .10 | 151 | .05 | 138 |
Sister:sister | .81*** | 17 | -.04 | 9 | -.19 | 11 | -.29 | 11 |
Spouse | .45*** | 266 | .31*** | 169 | .19** | 168 | .09 | 227 |
p<.05,
p<.01,
p< .001
These correlations are based on entire sample available and include some in the study who do not have EF data
Homogeneity tests show that there is significant variation in correlations among these groups (p < .05)