Ph.D., Economics of Education, Stanford University
Thesis Title: Platform Design in Educational Contexts
Advisors: Ben Domingue, Eric Bettinger, Mitchell Stevens, and Nick Haber


M.S., Management Science and Engineering, Stanford University


B.S., Applied Mathematics, UCLA


B.S., Economics, UCLA

Publications and Conference Proceedings

  1. Lang, D. N., Chen, Y., Paepcke, A., & Stevens, M. (2020). Course reviews reveal gender differences and other scientific insight about the students who submit them. EdArxiv.
  2. Lang, D., Chen, G., Mirzaei, K., & Paepcke, A. (2020, March). Is faster better? a study of video playback speed. In Proceedings of the Tenth International Conference on Learning Analytics & Knowledge (pp. 260-269).
  3. Lang, D. Stenhaug, B. Kizilcec, R. 2019. Keystrokes, Edit Distance, and Grading Rules: Psychometric Properties of Short Answer Items. AERA 2019.

  4. Mongkhonvanit, K., Kanopka, K., & Lang, D. (2019, March). Deep Knowledge Tracing and Engagement with MOOCs. In Proceedings of the 9th International Conference on Learning Analytics & Knowledge (pp. 340-342). ACM.

  5. Benotti, L., Bhaskaran, J., Kjartansson, S., & Lang, D. (2018). Modeling Student Response Times: Towards Efficient One-on-one Tutoring Dialogues. In Proceedings of the 2018 EMNLP Workshop W-NUT: The 4th Workshop on Noisy User-generated Text (pp. 121-131).

  6. Domingue, B. W., Lang, D., Cuevas, M., Castellanos, M., Lopera, C., Mariño, J. P., ... & Shavelson, R. J. (2017). Measuring student learning in technical programs: A case study from Colombia. AERA Open, 3(1), 2332858417692997.

  7. Lang, D., Kindel, A., Domingue, B., & Paepcke, A. (2017). Making the Grade: How Learner Engagement Changes after Passing a Course. Proceedings of Educational Data Mining 2017.

  8. Furlong, F., Lang, D., & Takhtamanova, Y. (2014). Drivers of mortgage choices by risky borrowers. FRBSF Economic Letter, 01.

  9. Furlong, F. T., Takhtamanova, Y., & Lang, D. (2014). Mortgage Choice in the Housing Boom: Impacts of House Price Appreciation and Borrower Type. Federal Reserve Bank of San Francisco.

  10. Hobijn, B., Krainer, J., & Lang, D. (2011). Cap rates and commercial property prices. FRBSF Economic Letter, 2011, 29.

  11. Lang, D., & Lansing, K. J. (2010). Forecasting growth over the next year with a business cycle index. FRBSF Economic Letter, 2010, 29.

Unpublished Working Papers and Posters

Unpublished Working Papers



Recorded Presentations

Other Presentations

Research Partnerships

Yup- Yup is a text-messaged based tutoring company

Reup- Reup is a college-coaching company that encourages students to re-enroll in college after dropping out

Eneza- Eneza is a Kenyan learning platform that provides primary and secondary education via SMS and feature phones


Projects and Code

Skills and Programming Languages

Technical Skills: Social Network Analysis, Natural Language Processing, Computer Vision, Machine Learning, Causal Inference, Regression Analysis, Econometrics, and Psychometrics