Table 1 The sequential mediation effect of positive emotions and learning achievement

	Beta	S.E.	t-value	LLCI	ULCI
Total Effects (a)+(b)	0.816	(0.033)	25.096***	0.752	0.880
Direct Effect (a) (X→Y)	0.094	(0.035)	2.718***	0.026	0.162
Indirect Effects (b)=(1)+(2)+(3)	0.722	(0.039)		0.647	0.799
Mediation Effect (1) (X→M1a→Y)	0.220	(0.029)		0.165	0.277
Mediation Effect (2) (X→M2→Y)	0.308	(0.035)		0.242	0.380
Mediation Effect (3) (X→M1a→M2→Y)	0.194	(0.022)		0.151	0.238

Control variable: Negative emotions. LLCI: 95% Lower level of confidence interval; ULCI: 95% Upper level of confidence interval.
p<0.001;
p<0.01;
p<0.05.