About the Validation of this Measure
Country where validated:
Germany
Content validity:
The HLS-Child-Q15 was developed with careful consideration of the target group, the underlying theoretical model and the original HLS-Child-Q47 items. Also, it was pre-tested qualitatively with members of the target group. More information on the development process and pretesting: Bollweg, T. M., Okan, O., Pinheiro, P., Bröder, J., Bruland, D., Freţian, A. M., . . . Bauer, U. (2020). Adapting the European Health Literacy Survey for Fourth-Grade Students in Germany: Questionnaire Development and Qualitative Pretest. Health Lit Res Pract, 4(2), e119-e128. https://doi.org/10.3928/24748307-20200326-01
Criterion validity:
In the validation study, validity was assessed regarding correlation of the HLS-Child-Q with a cloze procedure functional health literacy test (TOFHLA-Style; convergent validity) and correlation with self-efficacy (discriminant validity). Correlation between HLS-Child-Q15 and functional health literacy was weak but significant (r = .107, p < .001). This indicates that the measured contructs ("reading comprehension" vs. "perceived difficulty or ease in dealing with health-related information") are not very similar. Correlation between HLS-Child-Q15 scores and self-efficacy indicators items was stronger (r = .280 to .306, p < .001). This indicates that self-efficacy and perceived difficulty or ease in dealing with health-related information are somewhat related, which is plausible due to the phrasing of HLS-Child-Q15 items ("how easy or difficult is it for you to....").
Reliability (Cronbach Alpha):
0.791
Reliability notes:
Split-half realibility was high: r = 0.771