How Environmental Uncertainty Moderates the Effect of Relative Advantage and Perceived Credibility on the Adoption of Mobile Health Services by Chinese Organizations in the Big Data Era

Table 6

Results of hierarchical regression analysis.

	Model 1	Model 2a	Model 2b	Model 3a	Model 3b	Model 3c
Block 1: control variables
Organization size	0.05	0.02	0.05	0.04	0.04	0.03
Organization age
Block 2: main effects
Relative advantage
Perceived credibility
Environmental uncertainty
Block 3: moderating effects
Relative advantage × environmental uncertainty
Perceived credibility × environmental uncertainty						-0.07
Δ (IUMHS)		0.348	0.027	0.014	0.001	0.045
(effect size)		0.574	0.047	0.025	0.002	0.078
(IUMHS)	0.046	0.394	0.421	0.435	0.422	0.439
hierarchical					0.540

Note: and indicate significance at the 0.05 and 0.01 level, respectively. One-tailed -test was performed as the direction of differences was hypothesized.