. 2021 May 21;12:691207. doi: 10.3389/fpsyg.2021.691207

TABLE 3.

Study 1 and Study 2 Moderated Multiple Regression Analysis Results for Psychological Strain and Work Performance.

	Psychological strain					Work performance
Variable	Depression (Study 1); perceived strain (Study 2)					In-role performance		Job dedication		Voice behavior		Reward recommendations
	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6	Model 7	Model 6	Model 7	Model 6	Model 7	Model 6	Model 7
Study 1 (N = 212)
Age	−0.23**	−0.22**	−0.22**	−0.22**	−0.23**	–0.03	–0.03	0.06	0.05	0.11	0.10
Gender	0.18**	0.20**	0.19**	0.19**	0.20***	–0.07	–0.06	–0.11	–0.10	–0.09	–0.06
Organizational tenure	0.14	0.18	0.19*	0.18	0.20*	0.36**	0.34***	0.13	0.11	0.24*	0.24*
Tenure with manager	–0.13	–0.15	–0.15	–0.15	–0.16	0.12	0.12	0.17	0.17	0.04	0.03
Role ambiguity	0.15*	0.15*	0.09	0.09	0.08	–0.15	–0.04	–0.10	–0.01	−0.22***	−0.14*
Role conflict	0.42***	0.35***	0.34***	0.34***	0.32***	0.04	0.04	–0.01	–0.01	0.04	0.05
Role overload		0.19**	0.19**	0.19**	0.22***	0.06	0.07	0.13	0.14	0.09	0.11
LMX			−0.13*	−0.14*	−0.15*		0.27***		0.19*		0.18*
Role ambiguity × LMX				0.02	0.04		–0.04		0.04		–0.02
Role conflict × LMX				0.00	0.06		0.07		0.01		0.03
Role overload × LMX					−0.21***		–0.03		–0.04		–0.13
Depression						−0.22**	−0.19*	−0.18*	−0.17*	−0.21**	−0.21**
R²	0.27***	0.30***	0.32***	0.32***	0.36***	0.27***	0.34***	0.16***	0.19***	0.21***	0.25***
ΔR²		0.03**	0.01*	0.00	0.04***
Study 2 (N = 191)
Age	–0.03	–0.03	–0.05	–0.05	–0.06	0.07	0.08					0.07	0.08
Gender	0.02	0.01	0.02	0.01	0.02	0.09	0.08					0.12	0.12
Organizational tenure	0.07	0.07	0.07	0.07	0.08	0.26**	0.27**					–0.07	–0.07
Tenure with manager	–0.09	–0.11	–0.11	–0.12	–0.13	0.05	0.05					0.30**	0.29**
Role ambiguity	0.14	0.14	0.05	0.03	0.05	−0.18**	–0.14					−0.17*	–0.15
Role conflict	0.34***	0.27***	0.26***	0.25***	0.22**	–0.06	–0.08					−0.15*	−0.18*
Role overload		0.22**	0.21**	0.22**	0.25***	0.02	0.05					0.03	0.05
LMX			−0.18*	−0.17*	−0.17*		0.05						0.00
Role ambiguity × LMX				–0.09	–0.07		–0.03						0.00
Role conflict × LMX				0.03	0.10		0.16*						0.11
Role overload × LMX					−0.18*		–0.05						–0.08
Perceived strain						−0.31***	−0.31***					−0.17*	−0.18*
R²	0.16***	0.20***	0.22***	0.23***	0.25***	0.29***	0.32***					0.21***	0.22***
ΔR²		0.04**	0.02*	0.01	0.02*

Except for the R² and ΔR² rows, the values are standardized regression coefficients. LMX = Leader–member exchange. *p < 0.05, **p < 0.01, ***p < 0.001.