Table 6.
Linear model of predictors (2D:4D at T4, older brothers and older sisters) of sex-typed play preference (PSAI scores)
| Sex | R2 | Predictors | b | SE b | β | p | Partial correlation |
|---|---|---|---|---|---|---|---|
| Boys | .12 | 2D:4D | − 66.60 | 36.02 | − .22 | .069 | − .23 |
| Brothers | 3.14 | 1.67 | .22 | .064 | .23 | ||
| Sisters | − 2.36 | 2.17 | − .13 | .282 | − .13 | ||
| Girls | .30 | 2D:4D | − 117.09 | 42.75 | − .29 | .008 | − .32* |
| Brothers | 5.02 | 1.53 | .36 | .002 | − .38* | ||
| Sisters | − 2.83 | 1.67 | − .18 | .095 | − .21 |
2D:4D = averaged right and left digit ratios at T4 (age: 40 months); Brothers = number of older brothers, Sisters = number of older sisters
*p < .05