© 2014 A. P. Dasgupta et al. CBE—Life Sciences Education © 2014 The American Society for Cell Biology. This article is distributed by The American Society for Cell Biology under license from the author(s). It is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

ACKNOWLEDGMENTS

The shrimp and bird assessments were developed by the College Board; for the drug assessment, SRI International is the publisher and the copyright owner. We are grateful to the College Board and SRI International for granting permission to use their published assessments. We thank David Eichinger, Jeff Karpicke, and Dennis Minchella for insightful comments and suggestions and Samiksha Neroorkar, Rethabile Tekane, Caleb Trujillo, and other members of our research groups PIBERG (Purdue International Biology Education Research Group) and VIBE (Visualizations in Biochemistry Education) for their contributions to the progress of our study. We also thank our reviewers for their valuable feedback to help improve an early draft of the article. Some material presented here is based on research supported by the National Science Foundation under grant #0837229. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

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