Do visionary and servant leaders reduce cognitive uncertainty of professionals? A study of team-based settings in public organizations

Figures & data

Figure 1. Theoretical model.

Table 1. Fits of the measurement and structural models.

Model	Chi-square	DF	p	CFI	RMSEA	SRMR
Measurement models
1 factor model	15,310.040	350	.000	.322	.216	.220
3 factor model	8845.560	347	.000	.615	.164	.151
7 factor model	1838.130	329	.000	.932	.071	.034
7 factor multi-level model	737.653	159	.000	.953	.063	.038
Path model
Multilevel mediation model including controls	20.749	32	.000	.986	.080	.026

DF: Degrees of Freedom; CFI: Comparative Fit Index; RMSEA: Root Mean Square Error of Approximation; SRMR: Standardized Root Mean Residual.

Table 2. Descriptive statistics, correlations, and average variances extracted (n = 914 professionals and n = 101 teams).

		M	SD	1	2	3	4	5	6	7	8	9	10
1	Visionary leadership	3.59	0.41	.752
2	Team cohesion	3.93	0.40	0.524**	.715
3	Servant leadership	3.84	0.38	0.398**	0.230**	.773
4	Learning	3.93	0.73	0.130**	0.130**	0.396**	.747
5	Goal uncertainty	2.30	0.77	−0.191**	−0.220**	−0.317**	−0.302**	.787
6	Role uncertainty	2.01	0.68	−0.113**	−0.173**	−0.235**	−0.240**	0.555**	.760
7	Task uncertainty	2.00	0.61	−0.012	−0.084*	−0.156**	−0.138**	0.380**	0.668**	.789
8	Gender (0 = male)	0.86	n/a	0.011	0.041	−0.002	−0.023	0.063	0.060	−0.003	n/a
9	Age	41.97	11.96	−0.034	−0.020	−0.047	−0.146**	−0.012	−0.095**	−0.068*	0.092**	n/a
10	Team size	17.36	8.07	0.018	−0.120**	−0.032	−0.032	0.040	0.016	0.021	0.096**	0.001	n/a

*p < 0.05; **p < 0.01.

The emboldened diagonal elements represent the AVEs of the respective constructs.

Table 3. Results of structural equation modelling.

	Goal uncertainty			Role uncertainty			Task uncertainty
	coefficient	std. error	p-value	coefficient	std. error	p-value	coefficient	std. error	p-value
Direct effects
Level 1
Servant leadership	−.199	.033	.000	−.131	.030	.000	−.106	.028	.000
Learning	−.216	.035	.000	−.171	.032	.000	−.080	.030	.007
Age	−.003	.002	.083	−.007	.002	.000	−.005	.002	.007
Gender	.149	.067	.030	.105	.064	.092	−.018	.057	.755
Level 2
Visionary leadership	−.005	.084	.954	.076	.065	.246	.156	.060	.014
Team cohesion	−.292	.085	.001	−.247	.064	.000	−.146	.059	.010
Team size	.001	.003	.829	−.001	.002	.612	.000	.002	.946
Indirect effects
Level 1
Servant leadership through learning	−.076	.014	.000	−.060	.012	.000	−.028	.011	.009
Level 2
Visionary leadership through team cohesion	−.141	.047	.003	−.119	.036	.001	−.070	.031	.022