Table 8.

Longitudinal mediating effect analyses of intrinsic value and utility value at Wave 2 (the mediators) for the effect of IA at Wave 1 on academic performance satisfaction at Wave 2.

Regression models summary	Model 1a			Model 1b
	Intrinsic value			Utility value
	β	SE	t	β	SE	t
Total effect of IV on DV	−0.05	0.01	−4.43***	−0.05	0.01	−4.43***
IV to Mediator	−0.11	0.01	−10.48***	−0.08	0.01	−9.47***
Mediator to DV	0.25	0.02	11.46***	0.22	0.03	7.90***
Direct effect of IV on DV	−0.03	0.01	−2.16*	−0.04	0.01	−2.98*
Mediating effect	Point estimate	Bootstrapping (BC 95% CI)		Point estimate	Bootstrapping (BC 95% CI)
		Lower	Upper		Lower	Upper
	−0.04***	−0.06	−0.03	−0.00	−0.01	0.00
Regression models summary	Model 2 (intrinsic and utility values as mediators)
	Intrinsic value			Utility value
	β	SE	t	β	SE	t
Total effect of IV on DV	−0.09	0.01	−4.43***	−0.09	0.01	−4.43***
IV to Mediator	−0.20	0.01	−10.48***	−0.18	0.01	−9.47***
Mediator to DV	0.20	0.03	8.30***	0.03	0.03	1.27
Direct effect of IV on DV	−0.04	0.01	−2.07*	−0.04	0.01	−2.07*
Mediating effect	Point estimate	Bootstrapping (BC 95% CI)		Point estimate	Bootstrapping (BC 95% CI)
		Lower	Upper		Lower	Upper
	−0.03***	−0.03	−0.02	−0.00	−0.01	0.00

Model 1a and Model 1b examined the mediating effects of intrinsic and utility values separately. In Model 2, intrinsic value and utility value were simultaneously added to the model as mediators. BC, bias corrected; CI, confidence interval.

^*p < 0.05;

^***p < 0.001.