Do People Value Expertise? Revisiting Assumptions About Attention to Expertise via Eye-Tracking and the Loss of Expertise Cues During Person-to-Person Transmission of Science Information

People often learn about science from various sources including scientists, journalists, and friends. Many studies assume people pay different levels of attention to expert and non-expert sources. This foundational assumption has largely been tested with selective exposure and reading time measures. In Study 1, we used eye-tracking to measure attention and found that individuals paid more attention to experts than non-experts. The results are promising as it suggests that people can discriminate between expert and non-expert information. But in Study 2, we showed that expertise cues do not survive person-to-person transmission via serial reproduction. Our studies highlight the need to use new methods to validate key theoretical assumptions about attention and the presence of expertise cues during social transmission.