About the Authors
- Matthew H. Schneps, Chen Chen, Gerhard Sonnert
- Science Education Department, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, United States of America
- Jenny M. Thomson, Chen Chen
- Harvard Graduate School of Education, Harvard University, Cambridge, Massachusetts, United States of America
- Marc Pomplun
- Department of Computer Science, University of Massachusetts, Boston, Massachusetts, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MHS GS JMT CC MP. Performed the experiments: MHS CC. Analyzed the data: GS CC. Contributed reagents/materials/analysis tools: MHS JMT CC. Wrote the paper: MHS GS JMT CC MP.