Mind and behavior · 2 min read
People with a firm opinion chose more texts that supported it
People who were confident in their opinion opened more like-minded texts in a simulated search about psychotherapy. In the end, learning was similar.
The study, in plain language
Participants began by recalling an opinion about psychotherapy or antidepressants, along with a time when they felt confident or doubtful about it. They then browsed a simulated search page with tags, short posts, and a banner describing the community as expert or student-based. The combinations were randomly assigned.
When confidence in an opinion was high, that position guided the choice of like-minded texts more strongly. The community’s credibility mattered at a different point: when choosing tags. When the source seemed less expert, prior opinions guided tag selection more, and also guided which texts people opened.
Confidence also mattered afterward, when participants judged how effective the texts were: with high confidence, they rated texts agreeing with their position more favorably. With low confidence, they rated texts challenging it more favorably. Even so, differences in clicks and ratings did not produce a clear difference in how much participants learned.
The key idea
Confidence in an opinion influenced which texts people opened and how they rated them, while source credibility influenced which tags they chose.
Something to think about
When reading about an idea you already hold, ask whether you chose the text for its evidence or because it agrees with you. This is a question for reflection, not a tested technique for reducing bias.
The original study
Attitude confidence and source credibility in information foraging with social tags
Source under CC BY 4.0. English adaptation and explanation by PaperFlow, with AI assistance. The text has been reorganized for a general audience; it is not the complete paper and does not imply endorsement by its authors.
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