TABLE 5.

Results of hierarchical regression.

Regression analysis
Variable	Model 1	Model 2	Model 3	Model 4
Gender	−0.09	−0.05	−0.05	−0.04
Age	0.16	0.10*	−0.10*	−0.12*
Education	0.02	0.03	−0.02	0.02
Main effects
Social media collaborative		0.44**	0.34**	0.34**
Moderator
Academy self-efficacy			0.16*	0.25**
Interactions
Social media collaborative × Academy self-efficacy				0.18**
R 2	0.03	0.23	0.0.24	0.27
Adjusted R2	0.03	0.22	0.024	0.26
Changed R2	0.03	0.19	0.01	0.02
F Change	7.89	146.0	12.08	20.05

*p < 0.05, **p < 0.001.