Table 1.
Means (s.d.) of demographic and temperament measures for study participants
| Study Measures | All subjects | 7R+ | 7R− | BI |
|---|---|---|---|---|
| Age | 16.33 (2.84) | 15.75+ (2.69) | 16.84+ (2.80) | 0.173 |
| Gender | 38/40 | 16/16 | 21/25 | 0.169 |
| IQ | 114.20 (10.68) | 116.30 (9.95) | 112.73 (11.14) | 0.072 |
| SCARED parent | 9.38 (9.61) | 9.72 (9.84) | 9.25 (9.62) | 0.243* |
| SCARED child | 14.55 (10.93) | 14.48 (11.39) | 14.69 (10.84) | 0.086 |
| BI composite | −0.04 (0.70) | −0.02 (0.66) | −0.04 (0.73) | — |
| N | 78 | 32 | 46 | — |
Data are presented for the full sample in the first column, followed separately for DRD4 genotype (7R+, 7R−) in the next two columns. The final column presents the correlation between BI score and the row variable. Gender = male/female. +P < 0.10, *P < 0.05.