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Evolution is an important part of biology education, but many college biology students do not accept important components of evolution, like the evolution of humans. Practices that reduce perceived conflict between religion and evolution have been proposed to increase student evolution acceptance. This study investigates college student experiences of conflict reducing practices in evolution education and how these experiences are related to their gains in acceptance of human evolution during evolution instruction. We measured the natural variation in student experiences of conflict reducing practices among 6,719 college biology students in 55 courses and 14 states including (1) their experiences of an instructor demonstrating religion-evolutioncompatibilityby presenting examples of religious leaders and scientists who accept evolution and (2) their experiences of an instructor emphasizing students’autonomyin their own decision to accept evolution or not. We also measured student acceptance of human evolution before and after instruction so that we could test whether any changes in evolution acceptance were associated with student experiences of the conflict reducing practices. Linear mixed models showed that highly religious Christian students accepted evolution more when they perceived more compatibility practices. Further, students from all religious and non-religious affiliations accepted human evolution more after instruction when they perceived more autonomy practices. These results indicate that integrating examples of religion compatibility in evolution education will positively impact Christian students’ views on evolution and that emphasizing students’ autonomy over their decision to accept evolution may be important for students more broadly. If instructors incorporate practices that emphasize compatibility and one’s personal choice to accept or not accept evolution, then these results suggest that students will leave their college biology classes accepting evolution more. Perhaps by using more conflict reducing practices, instructors can help increase evolution acceptance levels that have remained low in the United States for decades. 

ABSTRACT Evolution is one of the most important concepts in biology, but it is rejected by a substantial percentage of religious students due to a perceived conflict with their religious beliefs. The use of religious cultural competence in evolution education (ReCCEE) has been shown to effectively increase evolution acceptance among religious students during in-person instruction, but there is no research that we know of that indicates the effectiveness of these practices during online instruction. In this study, we explored the efficacy of online culturally competent practices for religious students on students’ evolution understanding, evolution acceptance, and comfort learning evolution at a religious university. Before and after evolution instruction, we surveyed 178 students in online introductory biology courses and compared these student outcomes to 201 students in the same instructor’s in-person introductory biology courses. We found that evolution acceptance and understanding increased in online classes with culturally competent practices, and these gains were similar to those observed in the in-person courses. Despite these similarities, we found that students were more comfortable learning evolution in person than online, but this difference was small. Our findings suggest that the use of culturally competent practices online can be as effective as their use for in-person instruction for improving students' attitudes toward evolution, but in-person instruction may be more effective for cultivating students’ comfort while learning evolution.