Table 3.

Validity of the research constructs^a.

Research construct	Construct indicatorsb			Interconstruct correlation matrix
	VIF1	VIF2	VIF3	1	2	3	4	5
1. Organizational context	1.11	1.12	1.02	—c	—	—	—	—
2. Integration of MASd systems	1.00	—	—	0.46	—	—	—	—
3. Managerial context	1.00	1.00	—	–0.63	–0.44	—	—	—
4. Extended use of MAS systems	1.05	1.05	—	0.51	0.64	–0.38	—	—
5. Advanced accessibility	1.00	—	—	0.19	0.29	–0.18	0.14	—
6. Availability of medical care	1.00	1.00	—	0.54	0.21	–0.35	0.26	0.39

^aAssessing composite reliability and average variance extracted is inappropriate for formative constructs.

^bVIF_i: variance inflation factor of the construct’s ith indicator.

^cNot applicable.

^dMAS: medical appointment scheduling.