Some genetics educators have recently argued that improving students’ genomics literacy could prevent students from developing erroneous beliefs about social identity, such as the belief that racial groups differ cognitively and behaviorally because of their genes; a belief called genetic essentialism. To date, however, little research has explored if or how a conceptual understanding of genomics protects against the development of genetic essentialism. Using a randomized control trial (RCT) (N = 721, 9th-12th graders), we explore if students with more genomics literacy are more able to conceptually change their genetic essentialist beliefs after engaging in a learning experience designed to refute essentialist thinking. The results of the RCT demonstrated that students with higher genomics literacy (relative to those with lower genomics literacy) exhibited greater reductions in the perception of racial differences and greater reductions in belief in genetic essentialism after learning about patterns of human genetic variation. These results suggest that genetics education can protect students from developing a belief in genetic essentialism when it provides them with opportunities to learn multifactorial genetics and population thinking in conjunction with how these concepts refute essentialist thinking.
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From Basic to Humane Genomics Literacy: How Different Types of Genetics Curricula Could Influence Anti-Essentialist Understandings of Race
Genetic essentialism of race is the belief that racial groups have different underlying genetic essences which cause them to differ physically, cognitively, or behaviorally. Apparently no published studies have explored if belief in genetic essentialism of race among adolescents differs after many weeks of formal instruction about different domains of genetics knowledge. Nor have any studies explored if such differences reflect a coherent change in students’ racial schemas. We use a quasi-experimental design (N = 254 students in 7th-12th grade) to explore these gaps. Over the course of three months, we compared students who learned from a curriculum on multifactorial inheritance and genetic ancestry to students who learned from their business as usual (BAU) genetics curriculum that discussed Mendelian and molecular genetics without any reference to race, multifactorial genetics, or genetic ancestry. Relative to the BAU condition, classrooms that learned from the multifactorial genetics and ancestry curriculum grew significantly more in their knowledge of multifactorial genetics and decreased significantly more in their genetic essentialist perceptions, attributions, and beliefs. From a conceptual change perspective, these findings suggest that classrooms using a curriculum emphasizing genetic complexity are more likely to shift toward a coherent anti-essentialist understanding of racial difference.
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- Award ID(s):
- 1660985
- PAR ID:
- 10182697
- Date Published:
- Journal Name:
- Science and Education
- ISSN:
- 2181-0842
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract Recently, it has been argued that improving students' genomics literacy could prevent students from developing erroneous beliefs about social identity, such as the belief that racial groups differ cognitively and behaviorally because of their genes; a belief called genetic essentialism. To date, however, little research has explored if or how a conceptual understanding of genomics protects against the development of genetic essentialism. Using a randomized control trial (RCT) (
N = 721, 9th–12th graders), we explore if students with more genomics literacy are more able to conceptually change their genetic essentialist beliefs after engaging in a learning experience designed to refute essentialist thinking. The results of the RCT demonstrated that students with higher genomics literacy (relative to those with lower genomics literacy) exhibited greater reductions in the perception of racial differences and greater reductions in belief in genetic essentialism after learning how patterns of human genetic variation refute genetic essentialism. These results suggest that genetics education can protect students from developing a belief in genetic essentialism when it provides them with opportunities to learn multifactorial genetics and population thinking in conjunction with how these concepts refute essentialist thinking. -
Eddy, Sarah L (Ed.)Racial biases, which harm marginalized and excluded communities, may be combatted by clarifying misconceptions about race during biology lessons. We developed a human genetics laboratory activity that challenges the misconception that race is biological (biological essentialism). We assessed the relationship between this activity and student outcomes using a survey of students’ attitudes about biological essentialism and color-evasive ideology and a concept inventory about phylogeny and human diversity. Students in the human genetics laboratory activity showed a significant decrease in their acceptance of biological essentialism compared with a control group, but did not show changes in color-evasive ideology. Students in both groups exhibited increased knowledge in both areas of the concept inventory, but the gains were larger in the human genetics laboratory. In the second iteration of this activity, we found that only white students’ decreases in biological essentialist beliefs were significant and the activity failed to decrease color-evasive ideologies for all students. Concept inventory gains were similar and significant for both white and non-white students in this iteration. Our findings underscore the effectiveness of addressing misconceptions about the biological origins of race and encourage more research on ways to effectively change damaging student attitudes about race in undergraduate genetics education.more » « less
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Wright, L. Kate (Ed.)ABSTRACT Undergraduate genetics courses have historically focused on simple genetic models, rather than taking a more multifactorial approach where students explore how traits are influenced by a combination of genes, the environment, and gene-by-environment interactions. While a focus on simple genetic models can provide straightforward examples to promote student learning, they do not match the current scientific understanding and can result in deterministic thinking among students. In addition, undergraduates are often interested in complex human traits that are influenced by the environment, and national curriculum standards include learning objectives that focus on multifactorial concepts. This research aims to discover to what extent multifactorial genetics is currently being assessed in undergraduate genetics courses. To address this, we analyzed over 1,000 assessment questions from a commonly used undergraduate genetics textbook; published concept assessments; and open-source, peer-reviewed curriculum materials. Our findings show that current genetics assessment questions overwhelmingly emphasize the impact of genes on phenotypes and that the effect of the environment is rarely addressed. These results indicate a need for the inclusion of more multifactorial genetics concepts, and we suggest ways to introduce them into undergraduate courses.more » « less
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The past generation has seen a dramatic rise in multiracial populations and a consequent increase in exposure to individuals who challenge monolithic racial categories. We examine and compare two potential outcomes of the multiracial population growth that may impact people’s racial categorization experience: (a) exposure to racially ambiguous faces that visually challenge the existing categories, and (b) a category that conceptually challenges existing categories (including “biracial” as an option in addition to the monolithic “Black” and “White” categories). Across four studies ( N = 1,810), we found that multiple exposures to faces that are racially ambiguous directly lower essentialist views of race. Moreover, we found that when people consider a category that blurs the line between racial categories (i.e., “biracial”), they become less certain in their racial categorization, which is associated with less race essentialism, as well. Importantly, we found that these two effects happen independently from one another and represent two distinct cognitive processes.
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