The genetic drift inventory: a tool for measuring what advanced undergraduates have mastered about genetic drift.
The genetic drift inventory: a tool for measuring what advanced undergraduates have mastered about genetic drift.
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DOI：
10.1187/cbe.13-08-0159
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Perez KE
中科院分区：
文献类型：
--
作者：
Price RM;Andrews TC;McElhinny TL;Mead LS;Abraham JK;Thanukos A;Perez KE
遗传漂移量表是一个由22个陈述组成的多对-错格式概念量表。它测试了高年级本科生物学学生掌握四个关键概念的程度，同时测试了六个误解的存在。理解遗传漂变对于全面理解生物学至关重要，但它很难学习，因为它结合了进化和随机性的概念挑战。为了帮助评估教学遗传漂变的策略，我们开发和评估了遗传漂变清单（GeDI），这是一个概念清单，用于衡量高年级学生对这一概念的理解。我们使用了一种迭代的方法，包括广泛的访谈和实地测试，涉及五个不同的本科校园的1723名学生。GeDI由22个同意-不同意声明组成，评估了四个关键概念和六个误解。学生的分数从4/22到22/22不等。陈述的平均难度为0.29至0.80，辨别力为0.09至0.46。内部一致性，如Cronbach's alpha所测量的，在五次迭代中的范围从0.58到0.88。重测分析的稳定性系数为0.82。是非格式意味着GeDI可以测试学生对理解遗传漂变的关键概念的掌握程度，同时测试是否存在表明对遗传漂变不完全理解的误解。随着时间的推移，从这次测试中获得的见解将使我们能够改进关于进化的这一关键组成部分的教学。
The Genetic Drift Inventory is a multiple true–false format concept inventory consisting of 22 statements. It tests how well upper-division undergraduate biology students grasp four key concepts, while simultaneously testing for the presence of six misconceptions. Understanding genetic drift is crucial for a comprehensive understanding of biology, yet it is difficult to learn because it combines the conceptual challenges of both evolution and randomness. To help assess strategies for teaching genetic drift, we have developed and evaluated the Genetic Drift Inventory (GeDI), a concept inventory that measures upper-division students’ understanding of this concept. We used an iterative approach that included extensive interviews and field tests involving 1723 students across five different undergraduate campuses. The GeDI consists of 22 agree–disagree statements that assess four key concepts and six misconceptions. Student scores ranged from 4/22 to 22/22. Statements ranged in mean difficulty from 0.29 to 0.80 and in discrimination from 0.09 to 0.46. The internal consistency, as measured with Cronbach's alpha, ranged from 0.58 to 0.88 across five iterations. Test–retest analysis resulted in a coefficient of stability of 0.82. The true–false format means that the GeDI can test how well students grasp key concepts central to understanding genetic drift, while simultaneously testing for the presence of misconceptions that indicate an incomplete understanding of genetic drift. The insights gained from this testing will, over time, allow us to improve instruction about this key component of evolution.
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DOI：
10.1098/rspb.1979.0086
发表时间：
1979-01-01
期刊：
PROCEEDINGS OF THE ROYAL SOCIETY SERIES B-BIOLOGICAL SCIENCES
影响因子：
--
作者：
GOULD, SJ;LEWONTIN, RC
通讯作者：
LEWONTIN, RC
影响因子：
3.7
作者：
Andrews, T. M.;Price, R. M.;Lemons, P. P.
通讯作者：
Lemons, P. P.
影响因子：
3.3
作者：
Cotner, Sehoya;Brooks, D. Christopher;Moore, Randy
通讯作者：
Moore, Randy
影响因子：
2.8
作者：
Fischbein, E;Schnarch, D
通讯作者：
Schnarch, D
影响因子：
3.7
作者：
Garvin-Doxas, Kathy;Klymkowsky, Michael W.
通讯作者：
Klymkowsky, Michael W.