1. Computer Science and Engineering, University of Washington, Seattle, Washington, USA
2. Quantitative Studies and Measurement, University of Washington, Seattle, Washington, USA
3. Learning Sciences and Human Development, University of Washington, Seattle, Washington, USA
4. Teacher Education, University of Washington, Seattle, Washington, USA
5. Department of Psychology, University of Washington, Seattle, Washington, USA
6. Educational Consulting, Bainbridge Island, Washington, USA
7. Department of Health and Behavioral Studies, Teachers College, Columbia University, New York, New York, USA
8. Seattle Pacific University, Education, Seattle, Washington, USA