. 2018 Feb 19;5(1):e6. doi: 10.2196/humanfactors.9039

Table 2.

Factor loading and residual error estimates for confirmatory factor analysis of hypothesized model.

Factor-variable		Factor loadings (95% CI)	Error estimates (95% CI)	IR^a	CR^b	VEE^c
Awareness
	I know what health resources are available on the Internet	0.85 (0.80-0.89)^d	0.29 (0.21-0.36)^d	.71	.89	.80
	I know where to find helpful health resources on the Internet	0.94 (0.91-0.97)^d	0.11 (0.05-0.17)^d	.89
Skills
	I know how to find helpful health resources on the Internet^e	0.90 (0.86-0.93)^d	0.20 (0.14-0.26)^d	.80	.92	.79
	I know how to use the internet to answer my questions about health	0.88 (0.85-0.92)^d	0.22 (0.16-0.28)^d	.78
	I know how to use the information I find on the internet to help me	0.88 (0.85-0.92)^d	0.22 (0.16-0.28)^d	.78
Evaluate
	I have the skill I need to evaluate the health resources I find on the Internet	0.89 (0.85-0.92)^d	0.21 (0.15-0.28)^d	.79	.89	.72
	I can tell high quality from low quality health resources on the Internet	0.86 (0.82-0.90)^d	0.26 (0.19-0.33)^d	.74
	I feel confident in using information from the internet to make health decisions	0.80 (0.75-0.85)^d	0.36 (0.28-0.44)^d	.64

^aIR: indicator reliability.

^bCR: composite reliability.

^cVEE: variance extracted estimate.

^dP<.001.

^eThis item was dropped in the alternative 7-item model.