"Why do the Recommendations Keep Changing?" A Randomized Controlled Trial of a Scrollytelling Web Application to Help Members of the Public Understand Better How and Why Public Health Guidelines Change Over Time

Imagine you're trying to eat healthily, and suddenly the advice about what's good for you changes. Or perhaps during a health crisis, the guidance shifts. This can be confusing, and it might make you wonder why experts seem to change their minds. This study, called 'Why do the Recommendations Keep Changing?', aims to help clear up some of that confusion. It's designed to help people better understand the reasons behind changes in public health advice.

The researchers have created a special kind of animated online story, often called 'scrollytelling', which makes information engaging and easy to follow as you scroll down a page. They have two main versions of this story. One version focuses on understanding why advice about things like healthy eating might change over time. The other version looks at why public health guidelines during a health crisis, like a pandemic, might need to change as new information becomes available.

Participants in the study will be split into three groups. Two groups will watch one of these animated stories – either the one about food advice or the one about pandemic guidelines. The third group won't watch any story. By comparing what people in these groups understand afterward, the researchers hope to learn whether these animated stories are a good way to explain how and why public health advice evolves. This could ultimately help us all feel more confident in following expert health guidance.