Activism engagement
Contrary to Hypothesis 1, scientist identity did not significantly correlate with activism engagement, r(327) = .08, p = .17. The belief that activism can harm a scientist’s reputation and credibility did not significantly correlate with activism engagement, r(327) = -.09, p = .09. Consistent with Hypothesis 3, endorsement of scientist-activist compatibilism contributed to engagement. Believing objectivity and impartiality were uncompromised by activism, endorsing environmental stewardship as a scientist’s duty, and that it is possible to be a scientist and an activist, were all positively associated r(327) = .25 to .36 (all p’s < .001). Principal components analysis revealed that these different aspects of scientist-activist compatibilism formed a single composite variable showing good internal consistency (α = .76) and had an overall strong association with activism engagement, r(327) = .42, p < .001.
A final model 52, F(4, 324) = 90.13, p < .001, including age, scientist-activist compatibilism, level of interest in activism, and activist identity significantly predicted activism engagement (see Table 1). All variables in the final model were robust to multiple testing and the influence of activist identity (all variables satisfied the Bonferroni corrected alpha level of .009 for the final model). A large effect size31 was observed for the model. There were no issues of multicollinearity (all VIFs < 3). To check the stability of the model, we performed bootstrapped regressions with 10,000 iterations, revealing that all confidence intervals closely mirrored the original model's findings, further affirming the model's reliability.
Consistent with Hypothesis 2, activist identity contributed the largest amount of variance in activism engagement, but other factors explained additional variance. In addition to the positive effects of age, and accounting for the level of interest in activism, scientist-activist compatibilism was a significant predictor. Also, scientist-activist compatibilism was unrelated to scientist identification r(327) = .02, p = .70, suggesting scientist identity strength and the content of scientist identity are separate constructs.
All potential barriers were assessed for relationships with activism engagement (see Table 2). Uncertainty about the effectiveness of action, uncertainty about which actions to take, and not knowing others who are taking action were negatively correlated with activism engagement. Experiencing family commitments, and the impact of COVID-19, were positively correlated with engagement. Financial and work commitments, transport access, and visa and residency concerns exhibited weakly positive but non-significant correlations with engagement.
Techno-solutionism
Most participants disagreed with (n = 243, 74%) or expressed uncertainty about techno-solutionism (n = 50, 15%), while 11% (n= 36) endorsed it. Contrary to Hypothesis 4, scientist-identity strength was not associated with techno-solutionism, X2(1, N = 329) = 2.67, OR = 1.02 [1.00, 1.05], p = .10. However, higher scientist-activist compatibility scores uniquely predicted lower likelihood of techno-solutionism (see Table 3), X2(1, N = 329) = 36.76, OR = 0.80 [0.74, 0.86], p < .001, supporting Hypothesis 4 that scientists who viewed science and activism as incompatible were more likely to endorse techno-solutionism.
Comparison of activist group members with non-group members
Compared to scientists that are members of an activist group, non-group-member scientists expressed significantly less interest in and engaged less in activism (see Table 4 for all results). They also tended to be younger, significantly identified less as activists, were less certain about action effectiveness, were less likely to construe the scientist identity as compatible with activism, were more worried of what others might think of them, and were relatively more supportive of techno-solutionism (though on average still disagreed with it).
Scientist identity strength did not differ between the activist group and non-activist-group scientists. However, for activist group members, scientist-identity strength correlated with activism, r(172) = .25, p < .001. This was not the case for non-group members, r(153) = - .01, p = .91. Scientist-identity strength was a significant independent predictor of activism (see Table 5). The overall model was significant, .31, F(6, 167) = 13.78, p < .001. A large effect size31 was observed for the model. There were no issues of multicollinearity (all VIFs < 3). When including activist identity, the overall model improved F(7, 166) = 20.75, p < .001, a large effect size. However, scientist-identity strength was no longer significant, which further highlights the important role of activist identity for activism engagement.
Thematic analysis of open responses
Thematic analysis of the open responses (see Supplements for table of themes; see Methods for full analysis procedure) on factors preventing action (n = 292) complemented and expanded upon the quantitative analysis. For example, on the topic of scientist-activist compatibilism, some participants expressed that activism was incompatible with science as it contradicted the value of objectivity (“A researcher/scientist should be objective, and activism threatens scientific integrity”), while others emphasized the moral responsibility of a scientist to act:
For me it is a moral duty. I would not feel I was doing right by my responsibilities as a scientist, as someone who understands the risks, if I was not doing my best to create change and activism is an effective avenue for this.