| CA [low IQ] | CA [high IQ] | ||||||
---|---|---|---|---|---|---|---|---|
 | average | top | middle | bottom | average | top | middle | bottom |
DD | Z =-0.1 | Z = -0.5 | Z = -1.3 | Z = -0.3 | Z = -2.1 | Z = -1.3 | Z = -2.2 | Z = -1.3 |
 | p = .96 | p = .59 | p = .22 | p = .79 | p < .05 | p = .11 | p < .05 | p = .10 |
CA [high IQ] | Z = -2.1 | Z = -1.9 | Z = -1.4 | Z = -1.8 | Â | Â | Â | Â |
 | p < .05 | p < .05 | p = .08 | p < .05 |  |  |  |  |