Table 2.

Overall model fit and standardized results for the growth curve models of expectancy beliefs and subjective task values.

	χ2 (df)	p value	CFI	TLI	RMSEA	SRMR	90%CI	Level	Slope	Cov1a	Cov2a
Expectancy beliefs	3.427 (3)	0.330	1.00	0.99	0.019	0.016	0.00–0.09	5.53***	−2.48	0.16*/0.20	−0.01/0.17
Attainment value	6.651 (3)	0.083	0.96	0.89	0.056	0.021	0.00–0.11	4.86***	−1.00	0.17*/−0.04	−0.14/0.32
Interest value	6.113 (3)	0.106	0.97	0.91	0.051	0.019	0.00–0.11	4.30***	−1.52*	0.08/0.25	−0.01/0.14
Utility value	3.507 (3)	0.320	0.99	0.98	0.021	0.020	0.00–0.09	5.40***	−1.15**	0.11/0.16	−0.09/0.12
Cost	0.924 (3)	0.820	1.00	1.13	0.000	0.014	0.00–0.05	4.72***	−0.89	0.05/−0.00	−0.03/0.18

Abbreviations: CFI = comparative fit index; CI = confidence interval; Cov₁ = gender; Cov₂ = school; RMSEA = root mean square error of approximation; SRMR = standardized root mean square residual; TLI = Tucker–Lewis index.

^*p < 0.05, **p < 0.01, ***p < 0.001.

^aA value on level/slope.