Table 3.

Total scores, subscale scores, and internal consistencies on the Digital Health Literacy Instrument at baseline (T1; N=200) and at 2 weeks (T2; n=67).

Digital health literacy skill	T1 (N=200) mean (SD)	Alpha T1	T1 (n=67)a	T2 (n=67) mean (SD)	Alpha T2	ICCb between T1 and T2 (n=67)	P value
Total digital health literacy	3.11 (0.45)	.87	3.12 (0.39)	3.16 (0.41)	.88	.77	<.001
Operational skillsc	3.67 (0.59)	.77	3.76 (0.43)	3.68 (0.51)	.86	.81	<.001
Navigation skillsc	3.30 (0.52)	.70	3.38 (0.42)	3.28 (0.52)	.82	.60	<.001
Information searchingc	3.04 (0.64)	.89	3.00 (0.62)	3.00 (0.50)	.82	.63	<.001
Evaluating reliabilityc	2.70 (0.63)	.78	2.74 (0.61)	2.84 (0.53)	.79	.67	<.001
Determining relevancec	2.81 (0.60)	.81	2.82 (0.56)	2.85 (0.58)	.85	.49	<.001
Adding contentc	3.00 (0.67)	.89	2.98 (0.72)	3.14 (0.61)	.91	.58	<.001
Protecting privacy (T1 n=86; T2 n=38)	3.52 (0.52)	.57	3.38 (0.46)	3.61 (0.50)	.68	.49	<.02

^aScores at T1 of those who also completed the survey at T2.

^bICC: intraclass correlation coefficient.

^cAnswer score range 1-4.

^dAnswer score range 2-4.