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ERIC Number: EJ823028
Record Type: Journal
Publication Date: 2008
Pages: 9
Abstractor: As Provided
Reference Count: 33
ISSN: ISSN-1931-7913
The Genetics Concept Assessment: A New Concept Inventory for Gauging Student Understanding of Genetics
Smith, Michelle K.; Wood, William B.; Knight, Jennifer K.
CBE - Life Sciences Education, v7 n4 p422-430 Spr 2008
We have designed, developed, and validated a 25-question Genetics Concept Assessment (GCA) to test achievement of nine broad learning goals in majors and nonmajors undergraduate genetics courses. Written in everyday language with minimal jargon, the GCA is intended for use as a pre- and posttest to measure student learning gains. The assessment was reviewed by genetics experts, validated by student interviews, and taken by more than 600 students at three institutions. Normalized learning gains on the GCA were positively correlated with averaged exam scores, suggesting that the GCA measures understanding of topics relevant to instructors. Statistical analysis of our results shows that differences in the item difficulty and item discrimination index values between different questions on pre- and posttests can be used to distinguish between concepts that are well or poorly learned during a course. (Contains 4 tables and 4 figures.)
American Society for Cell Biology. 8120 Woodmont Avenue Suite 750, Bethesda, MD 20814-2762. Tel: 301-347-9300; Fax: 301-347-9310; E-mail:; Website:
Publication Type: Journal Articles; Reports - Evaluative
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Colorado