Like Mother, Like Daughter: Adults' Judgments about Genetic Inheritance

Saved in:
Bibliographic Details
Title: Like Mother, Like Daughter: Adults' Judgments about Genetic Inheritance
Language: English
Authors: David Menendez, Olympia N. Mathiaparanam, Vienne Seitz, David Liu, Andrea Marquardt Donovan, Charles W. Kalish, Martha W. Alibali, Karl S. Rosengren
Source: Grantee Submission. 2023.
Peer Reviewed: Y
Page Count: 48
Publication Date: 2023
Sponsoring Agency: Institute of Education Sciences (ED)
National Science Foundation (NSF)
Contract Number: R305B150003
1760940
Document Type: Reports - Research
Education Level: Higher Education
Postsecondary Education
Descriptors: Heredity, Genetics, Adults, Probability, Misconceptions, Biology, Knowledge Level, College Students
DOI: 10.1037/xap0000436
Abstract: Do people think about genetic inheritance as a deterministic or probabilistic process? Do adults display systematic biases when reasoning about genetic inheritance? Knowing how adults think about genetic inheritance is valuable, both for understanding the developmental endpoint of these concepts and for identifying biases that persist even after formal education. In two studies, we examined adults' reasoning about genetic inheritance for familiar animals (Study 1) and unfamiliar animals (Study 2). First, participants were presented with animals that varied in eye color and were asked to judge whether each could be the offspring of a particular set of animal parents that had either the same or different eye colors. The potential offspring had eye colors that were either identical to the parents, blended the parents' eye colors, or differed from the parents. Next, participants predicted how six offspring of the animal parents would look. Participants judged a variety of choices as possible--not only the ones resembling the parents--suggesting that they thought genetic inheritance was a probabilistic process. Additionally, many participants thought that female offspring would look more like their mothers and male offspring would look more like their fathers. Thus, systemic biases in reasoning about inheritance persist into adulthood. [This paper was published in "Journal of Experimental Psychology: Applied" v29 n1 2023 (ISSN 1076-898X).]
Abstractor: As Provided
IES Funded: Yes
Entry Date: 2025
Accession Number: ED663733
Database: ERIC
Be the first to leave a comment!
You must be logged in first