Current Projects
Social Sciences
- Social and political polarization
- Public opinion and policy responsiveness: gay rights in the states
- Storable votes
- Rich state, poor state, red state, blue state: what's the matter with Connecticut?
- Representation, spending, and subnational units
- Reversals of death sentences
- Evaluating legislative districting
- Longitudinal study of probation practices and youth outcomes
- Political stereotypes
- The impact of the Food Stamp Program on infant outcomes
- How does loss aversion affect choice?
- Online search behavior
- Estimating the link between agricultural yields and temperature extremes
- ShadowCount 2007
- How do we estimate public opinion in the states?
- Small world project
- Columbia Couples Lab
- The influence of income on intended primary vote
- Social processes in juvenile probation
- How world poverty is measured and tracked
Public Health and Management
- Psychiatric epidemiology
- Columbia center for the study of homelessness
- Bayesian analysis of serial dilution assays
- Socio-cultural influences on allergic sensitization
- Arsenic in Bangladesh
- Inference and decision making for ConEdison
Statistical Methods
- Time series of small-area estimates: public opinion trends by state
- Weighting and regression adjustments for surveys and causal inference
- Models for constructing flexible and reliable multiple imputation procedures
- Tools for computing and understanding Bayesian and multilevel regression models
- Interactions in regression models
- Analysis of time-series cross-sectional data
- Multiple comparisons
- Morphing for summarizing model misfit
- Respondent-driven sampling as Markov Chain Monte Carlo