© 2019 T. L. Cary et al. CBE—Life Sciences Education © 2019 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).

We thank Rosemary Russ for her guidance developing the think-aloud interview protocol and questions. We thank our expert reviewers for their expertise and feedback, which greatly improved the quality of the TF/I statements. We thank Amanda Butz for her guidance with statistical analyses and interpretation. We offer special thanks to those who offered substantial input and review of the article: Claudia Alvarez-Baron, Amanda Butz, Kyriaki Chatzikyriakidou, Michelle Harris, Jessica Maher, Beth Meyerand, Chris Pfund, Kevin Strang, Jessica TeSlaa, Cara Theisen, and Chris Trimby. This work was funded by an Undergraduate Science Education grant from the Howard Hughes Medical Institute to the University of Wisconsin–Madison (52006959) and by the Wisconsin Institute for Science Education and Community Engagement (WISCIENCE).

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