Table 5.

Spearman rank correlations of the GR-eHEALS^a subscales and the overall GR-eHEALS with convergent and criterion validity variables.

Validity and variables		ISb subscale		IAc subscale		Overall scale
		Correlation coefficient, r	P value	Correlation coefficient, r	P value	Correlation coefficient, r	P value
Convergent validity
	Knowledge of internet-based health promotion programs	0.45	<.001	0.31	<.001	0.41	<.001
	Experience in using internet-based health promotion programs	0.28	<.001	0.17	<.01	0.25	<.001
	Duration of daily private internet use	0.15	<.01	0.16	<.01	0.16	<.01
	Internet anxiety	–0.20	<.001	–0.30	<.001	–0.28	<.001
Criterion validity
	Physical health	0.04	.47	–0.01	.86	0.02	.71
	Mental health	0.14	<.05	0.11	<.05	0.14	<.05
	Quality of life	0.12	<.05	0.06	.29	0.10	.06
	Internal health locus of control	0.19	<.001	0.18	<.001	0.20	<.001

^aGR-eHEALS: German Revised eHealth Literacy Scale.

^bIS: information seeking.

^cIA: information appraisal.