Table 2.
IQ-Adjusted Wisconsin Card Sorting Test (WCST) Mean Scores for Control, Adolescence-Onset CD, and Early-Onset CD Groups and ANCOVA Results Including IQ As a Covariate
| Measures | CON (n = 83) |
AO-CD (n = 32) |
EO-CD (n = 36) |
p Value | |||
|---|---|---|---|---|---|---|---|
| Mean | SE | Mean | SE | Mean | SE | ||
| Categories completed | 6.0 | .0 | 6.0 | .0 | 5.9 | .0 | .18 |
| Trials administered | 84.9 | 1.5 | 86.0 | 2.3 | 88.3 | 2.3 | .58 |
| Perseverative errors | 7.5 | .4 | 8.3 | .6 | 9.2 | .6 | .22 |
| Nonperseverative errors | 7.9 | .5 | 7.2 | .8 | 8.6 | .8 | .72 |
| Trials to first category | 12.4 | .4 | 11.7 | .7 | 12.5 | .7 | .56 |
| Failure to maintain set | .4 | .1 | .4 | .1 | .3 | .1 | .81 |
Note that WCST data were unavailable for one CON, two AO-CD, and two EO-CD participants.
ANCOVA, analysis of covariance; AO-CD, adolescence-onset conduct disorder; CD, conduct disorder; CON, control; EO-CD, early-onset conduct disorder; IQ, intelligence quotient; WCST, Wisconsin Card Sorting Test.