From the Health Literacy Online website section on Why this Guide?:
Many web users struggle with even the most basic tasks—for example, using a search function, navigating from a drop-down menu, and scanning a webpage for relevant information. This may not matter too much in the context of an online news article or confusing eCommerce site. But the stakes are raised considerably when a person is trying to sign up for health insurance, learn about a new medical diagnosis, or look up how to correctly install a child safety seat. And today, these activities are more likely to occur online than off.
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Link to the Health Literacy Online websiteThere’s a growing body of literature related to the cognitive processing and online behavior of adults with limited literacy skills. In this section, we outline what we know about how literacy can affect a user’s ability to read, process information on a screen of any size, and interact with technology.