 The study aims to examine validity evidence based on relations to other variables using data collected with the known group's approach, and uses a base on mediated multiple indicators multiple causes model approach to simultaneously identify group differences and test measurement invariance through differential item functioning across the groups, with ICT use as a mediator. The study found that being older was significantly related to lower scores in four EHLQ scales, while higher education was associated with higher scores in one. Using technology to process health information and three. Ability to actively engage with digital services. Higher ICT use was related to higher scores in all scales except two. Understanding health concepts and language and four. Feel safe and in control. The study provides supportive validity evidence for the EHLQ based on relations to other variables as well as established evidence regarding internal structure related to measurement invariance across the groups for the seven scales in the Australian community health context. Demonstrating that the EHLQ can be used to gain valuable insights into people's e-health literacy needs to help optimize access and use of digital health and promote health equity. This article was authored by Christina Cheng, Gerald Ellsworth, and Richard H. Osborne. We are article.tv, links in the description below.