TABLE 4.

Results of hierarchal regression.

Variable	Voice		Self-efficacy		Psychological safety
	Model 1	Model 2	Model 3	Model4	Model 5	Model 6
Control variables
Leaders’ age	–0.01	–0.10	0.05	0.05	–0.05	–0.07
Leaders’ gender	0.15	0.13	0.01	0.02	0.07	0.09
Employees’ age	0.22*	0.21**	0.09	0.07	–0.00	–0.02
Employees’ gender	0.04	0.04	0.04	0.03	–0.02	–0.02
Dyadic tenure	0.04	0.04	–0.04	–0.02	0.02	0.06
Independent variable
Leader humility (LH)	0.15*	–0.05	0.41**	0.31**	0.60**	0.35**
Mediator
Self-efficacy		0.15**
Psychological safety		0.22**
Moderator
Manipulative intention (MI)				–0.23**		–0.43**
Interaction
LH × MI				–0.19**		–0.15**
R 2	0.09	0.15**	0.18**	0.21**	0.38**	0.45**

*p < 0.05, **p < 0.01.