دورية أكاديمية
The Dominance Concept Inventory: A Tool for Assessing Undergraduate Student Alternative Conceptions about Dominance in Mendelian and Population Genetics
| العنوان: | The Dominance Concept Inventory: A Tool for Assessing Undergraduate Student Alternative Conceptions about Dominance in Mendelian and Population Genetics |
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| اللغة: | English |
| المؤلفون: | Abraham, Joel K., Perez, Kathryn E., Price, Rebecca M. |
| المصدر: | CBE - Life Sciences Education. Jun 2014 13(2):349-358. |
| الإتاحة: | American Society for Cell Biology. 8120 Woodmont Avenue Suite 750, Bethesda, MD 20814-2762. Tel: 301-347-9300; Fax: 301-347-9310; e-mail: ascbinfo@ascb.org; Website: http://www.ascb.org |
| Peer Reviewed: | Y |
| Page Count: | 10 |
| تاريخ النشر: | 2014 |
| نوع الوثيقة: | Journal Articles Reports - Research |
| Education Level: | Higher Education Postsecondary Education |
| Descriptors: | Undergraduate Students, Scientific Concepts, Misconceptions, Genetics, Biology, College Science, Measures (Individuals), Test Items, Difficulty Level, Test Reliability, Expertise, Surveys, Interviews, Field Tests, Introductory Courses, Advanced Courses, Incidence |
| DOI: | 10.1187/cbe.13-08-0160 |
| تدمد: | 1931-7913 |
| مستخلص: | Despite the impact of genetics on daily life, biology undergraduates understand some key genetics concepts poorly. One concept requiring attention is dominance, which many students understand as a fixed property of an allele or trait and regularly conflate with frequency in a population or selective advantage. We present the Dominance Concept Inventory (DCI), an instrument to gather data on selected alternative conceptions about dominance. During development of the 16-item test, we used expert surveys (n = 12), student interviews (n = 42), and field tests (n = 1763) from introductory and advanced biology undergraduates at public and private, majority-and minority-serving, 2-and 4-yr institutions in the United States. In the final field test across all subject populations (n = 709), item difficulty ranged from 0.08 to 0.84 (0.51 ± 0.049 SEM), while item discrimination ranged from 0.11 to 0.82 (0.50 ± 0.048 SEM). Internal reliability (Cronbach's alpha) was 0.77, while test-retest reliability values were 0.74 (product moment correlation) and 0.77 (intraclass correlation). The prevalence of alternative conceptions in the field tests shows that introductory and advanced students retain confusion about dominance after instruction. All measures support the DCI as a useful instrument for measuring undergraduate biology student understanding and alternative conceptions about dominance. |
| Abstractor: | As Provided |
| Number of References: | 42 |
| Entry Date: | 2014 |
| رقم الأكسشن: | EJ1029536 |
| قاعدة البيانات: | ERIC |
| تدمد: | 1931-7913 |
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| DOI: | 10.1187/cbe.13-08-0160 |