Table 2.

Unconditional Linear Growth Curve Models Conducted Separately by Outcome and Informant (n = 346 mother-reports and n = 334 father-reports)

Child EXT Behaviors Model	Mother-reports		Father-reports
	Mean (range)	SD	Mean (range)	SD
Observed scores (growth weighta)
EXT-18 months (0)	11.06 (0–31)	6.01	9.56 (0–30)	6.07
EXT-27 months (.75)	11.55 (0–27)	6.09	10.35 (0–36)	6.33
EXT-54 months (3)	12.79 (0–39)	6.92	11.15 (0–35)	6.67
Latent growth factors	Mean (SE)	Variance (SE)	Mean (SE)	Variance (SE)
EXT-intercept	11.12 (.31)***	25.27 (2.80)***	9.70 (.32)***	25.55 (2.98)***
EXT-slope	.58 (.14)***	2.36 (1.15)*	.48 (.13)***	2.49 (1.18)*
Child INT Behaviors Model	Mother-reports		Father-reports
	Mean (range)	SD	Mean (range)	SD
Observed scores (growth weighta)
INT-18 months (0)	5.01 (0–24)	3.47	4.54 (0–23)	3.88
INT-27 months (.75)	5.80 (0–24)	4.10	5.25 (0–25)	4.36
INT-54 months (3)	7.72 (0–36)	5.44	6.59 (0–25)	5.25
Latent growth factors	Mean (SE)	Variance (SE)	Mean (SE)	Variance (SE)
INT-intercept	5.01 (.18)***	8.30 (1.06)***	4.59 (0–23)	10.63 (1.29)***
INT-slope	.90 (.11)***	1.31 (.61)*	.68 (.11)***	1.38 (.66)*

Note.

^agrowth weights set to specify time in years. EXT = Child externalizing behaviors. INT = Child internalizing behaviors. SE = standard error. Sample sizes at ages 18, 27, and 54 months were n = 328, 312, and 253, respectively, for mother-reports; n = 311, 296, and 229, respectively, for father-reports. Mother-report EXT Model χ² (n = 346, df = 1) = .11, p = .87; CFI = 1.000, TLI = 1.011, RMSEA = .000. Father-report EXT Model χ² (n = 334, df = 1) = 1.37, p = .24; CFI = .998, TLI = .995, RMSEA = .033. Mother-report INT Model χ² (n = 346, df = 1) = .51, p = .48; CFI = 1.000, TLI = 1.008, RMSEA = .000. Father-report INT Model χ² (n = 334, df = 1) = .88, p = .35; CFI = 1.000, TLI = 1.002, RMSEA = .000.

^*p < .05.

^**p < .01.

^***p < .001.