26:T4ae,

This empirical article explores the dynamics of exchange and reciprocity between cohorters, that is, study organizers, and cohortees, that is, study participants. Drawing on literature on bioeconomy and valuation, we analyze cohortees’ expectations in return for the “clinical labor” they perform in the pilot phase of a Swiss precision public health study. Based on an ethnography of this cohort and data from seven focus groups with cohortees (n = 37), we identified four positions: (1) the good citizen participant, (2) the critical participant, (3) the concerned participant, and (4) the self-oriented participant. These reveal that cohortees’ participation, still framed in altruistic terms, nevertheless engages expectations about reciprocal obligations of the state and science in terms of public health, confirming the deep entanglement of gift-based, financial, and moral economies of participation. The different values emerging from these expectations—robust scientific evidence about environmental exposure and a socially oriented public health—provide rich indications about stake making which might matter for the future of precision public health.

27:T41e,

The present study sought to explore the distinct discourse norms and evidentiary practices in discussions of COVID-19 in four subcommunities on Reddit. Qualitative analysis found that communities differed in the degree to which they reinforce and augment Reddit’s platform-wide norms for dialog and evidence use. One of the three communities (r/AskTrumpSupporters) differed from the rest by establishing discourse norms for turn-taking between politically opposed users and structuring dialog around authentic questions aimed at understanding alternative points of view. Quantitative analyses revealed that this community significantly differed from the other communities in the proportion of dialogic exchanges and in the use of evidentiary practices (sourcing, source evaluation, and interpretation of evidence). Excerpts of dialog from this community are used to illustrate findings. We conclude with implications for educators interested in preparing youth to critically engage with scientific information they encounter in public discourse.

28:T448,

Political actors pay attention to newspapers because they stimulate them to address a topic, reflect public opinion, provide feedback to their decisions, and help them to generate effective messages. Previous surveys showed that this is true for scientific issues. It follows that the newspaper coverage of scientific issues should appear as politically oriented, as observed regarding climate change. Here, we tested this prediction regarding educational neuroscience. This scientific issue is interesting because it implies no major economic interest and because the relevance of neuroscience regarding teaching in the classroom is still highly controversial. As hypothesized, we observed that the French press appeared strongly polarized: the right-leaning press was mostly favorable to educational neuroscience, whereas critical opinions were mainly found in the social-democrat press. Although the relevance of neuroscience toward teaching was rarely discussed in scientific arguments, political actors often invoked educational neuroscience in the press to legitimate their decision.

29:T432,

Lay readers’ trust in scientific texts can be shaped by perceived text easiness and scientificness. The two effects seem vital in a time of rapid science information sharing, yet have so far only been examined separately. A preregistered online study was conducted to assess them jointly, to probe for author and text trustworthiness overlap, and to investigate interindividual influences on the effects. N = 1467 lay readers read four short research summaries, with easiness and scientificness (high vs low) being experimentally varied. A more scientific writing style led to higher perceived author and text trustworthiness. Higher personal justification belief, lower justification by multip