Table 2.

Results of post hoc sex-stratified analyses in which whole-skeleton fractional anisotropy was regressed simultaneously on the three CADS dispositions and covariates of no interest in only males and only females to interpret sex-by-disposition interactions that were significant at FDR corrected levels (Table 1)

Informant:	Parent		Youth
Dispositions	β (SE)	P <	B (SE)	P <
Males Only (N = 192)
Negative emotionality	−0.17 (0.08)	0.0336	0.18 (0.06)	0.0040
Prosociality	−0.06 (0.08)	0.4768	0.18 (0.10)	0.0738
Daring	−0.24 (0.07)	0.0016	−0.13 (0.07)	0.0865
Females Only (N = 210)
Negative emotionality	0.09 (0.12)	0.4669	−0.17 (0.08)	0.0273
Prosociality	0.43 (0.12)	0.0008	0.12 (0.10)	0.2216
Daring	0.06 (0.09)	0.4558	0.01 (0.10)	0.8828

CADS = Child and Adolescent Dispositions Scale. Covariates: age in Wave 1, age in Wave 2, race-ethnicity, handedness, scanner, total intracranial volume.

CADS disposition scores standardized to mean of 0 and standard deviation of 1.

Coefficients in bold are significant after FDR correction (adopting a 5% false discovery rate) for 12 tests.