College of Nursing & Research Institute of Nursing Science, Hallym University, Chuncheon, South Korea.
College of Nursing, Seoul National University, Seoul, South Korea.
Int J Older People Nurs. 2021 May;16(3):e12369. doi: 10.1111/opn.12369. Epub 2021 Feb 1.
This study aimed to compare the psychometric properties of two measures of eHealth literacy, namely, the Korean versions of the Digital Health Literacy Instrument (K-DHLI) and eHealth Literacy Scale (K-eHEALS), among older adults in South Korea.
Given the usefulness of eHealth information, measures of eHealth literacy have been developed. It is necessary to examine the validity of such tools among older adults who are likely to experience difficulties in using eHealth resources.
A validation study was conducted using the secondary data of 180 older adults in South Korea. Two weeks after they had responded to the K-DHLI and K-eHEALS, 89 of them completed the assessments a second time so that the assessments' test-retest reliability could be examined. Using the collected data, their reliability (i.e. internal consistency, test-retest reliability) and validity (i.e. construct validity and criterion validity) were examined.
Both tools demonstrated satisfactory internal consistency (α ≥ 0.90, item-total correlation coefficients = .39-.76) as well as good test-retest reliability with intraclass correlation coefficients .77 and .84, respectively. The 21 items of the K-DHLI loaded onto five factors, which accounted for 71% of the variance. The 10 items of the K-eHEALS loaded onto a single factor, which explained 58% of the total variance. The scores of both tools were strongly correlated (r = .63) and positively related to attitudes towards internet health information and subjective health status (r = .23-.50).
The findings suggest that the K-DHLI and K-eHEALS are reliable and valid tools that can be used to assess the utilisation of eHealth resources by older adults.
The findings can help healthcare providers choose a suitable measure of eHealth literacy when working with older adults.
本研究旨在比较两种电子健康素养测量工具，即韩国数字健康素养工具（K-DHLI）和电子健康素养量表（K-eHEALS），在韩国老年人中的心理测量学特性。
鉴于电子健康信息的有用性，已经开发了电子健康素养测量工具。有必要在可能难以使用电子健康资源的老年人中检验这些工具的有效性。
使用韩国 180 名老年人的二级数据进行了验证研究。在他们回答完 K-DHLI 和 K-eHEALS 两周后，其中 89 人再次完成了评估，以检查评估的重测信度。使用收集到的数据，检验了它们的可靠性（即内部一致性、重测信度）和有效性（即构念效度和效标效度）。
两种工具都表现出令人满意的内部一致性（α≥0.90，项目总分相关系数为.39-.76），重测信度良好，内类相关系数分别为.77 和.84。K-DHLI 的 21 个项目可分为五个因素，占总方差的 71%。K-eHEALS 的 10 个项目可分为一个因素，占总方差的 58%。两种工具的得分呈强相关（r=.63），与对互联网健康信息的态度和主观健康状况呈正相关（r=.23-.50）。
研究结果表明，K-DHLI 和 K-eHEALS 是可靠且有效的工具，可以用于评估老年人对电子健康资源的利用情况。
这些发现可以帮助医疗保健提供者在与老年人合作时选择合适的电子健康素养测量工具。
