Methodology

2010. Design-Based Inference: Beyond the Pitfalls of Regression Analysis? To appear in David Collier and Henry Brady, eds., Rethinking Social Inquiry: Diverse Tools, Shared Standards. Lanham, MD: Rowman & Littlefield, 2nd edition.

2009. Instrumental Variables. Prepared for inclusion in the International Encyclopedia of Political Science.

2008. Model Specification in Instrumental-Variables Regression. Political Analysis 16 (3): 290-302. Online version published as doi:10.1093/pan/mpm039 (February 10, 2008). The preprint version is also available here; simulations discussed in the article are here.

2008. Improving Causal Inference: Strengths and Limitations of Natural Experiments. Political Research Quarterly 61 (2): 282-293. Online version is also available here (October 3, 2007).

2008. The Analysis of Experimental Data: Comparing Techniques. Working paper (with Susan Hyde). Presented at the annual meetings of the American Political Science Association, Boston, MA, August 29-September 1, 2008.

2008.Natural and Field Experiments: The Role of Qualitative Methods. Qualitative Methods 6 (2) (Newsletter of the American Political Science Association’s Organized Section on Qualitative Methods).

2008. Review of John Gerring, Case Study Research: Principles and Practices, Cambridge University Press. 2008. In The Journal of Politics, 70 (1): 282-83. Advance version online as doi:10.1017/S0022381607080243.

2007. Modeling Selection Effects. In William Outhwaite and Stephen P. Turner, eds., The SAGE Handbook of Social Science Methodology. London: Sage Publications (with David Freedman).

2007. The Role of Iteration in Multi-Method Research. Qualitative Methods (Newsletter of the American Political Science Association’s Organized Section on Qualitative Methods), 5 (1). Click here to see the complete symposium on multi-method research and here to see the entire issue of the newsletter.

2007. Report to a committee of the National Academy of Sciences on improving USAID program evaluation: Field memos from Peru. . The committee’s full report is available online here.