Table 1.
Means (and Standard Deviations) by Sex for Mother-, Father-, and Laboratory-assessed Fear, Activity Level and Inhibitory Control for All Participants
|
|
|||
|---|---|---|---|
| Males (n=358) | Females (n=356) | Effect Size (d) | |
| Shyness | |||
| Mother CBQ | −.18 (.96) | .16 (.98) | −.35 |
| Father CBQ | −.09 (.92) | .07 (.98) | −.17 |
| Lab-TAB episode | −.12 (.98) | .18 (.92) | −.32 |
| Activity Level | |||
| Mother CBQ | .19 (.93) | −.16 (1.02) | .36 |
| Father CBQ | .18 (.93) | −.18 (.98) | .38 |
| Lab-TAB episode | .13 (1.05) | −.13 (.93) | .26 |
| Inhibitory Control | |||
| Mother CBQ | −.17 (1.01) | .21 (.94) | −.39 |
| Father CBQ | −.09 (.95) | .13 (.97) | −.23 |
| Lab-TAB composite | −.28 (1.04) | .20 (.89) | −.50 |
Note. Corresponding z-statistics were significant (at p < .05, 2-tailed) for all variables, indicating significant sex differences. Effect size estimated as Cohen’s d express group differences in standard deviation units.