Monthly Archives: February 2010

My last post described how test development designs could be thought of as multistage sampling designs and how multilevel Rasch could be used to estimate parameters under that assumption. I decided to use to compare estimates from the usual Rasch … Continue reading →

After years of studying and applying quantitative social science research methods, it has become easier to catch glimpses of larger connections between seemingly independent methodological approaches. I have learned, for example, that survey development has a lot in common with … Continue reading →

Choosing a functional form for the relationship between the assignment and outcome variable from a regression discontinuity design is an important step in estimating the local average treatment effect. Plotting nonparametric smoothers can suggest a functional form, and nonparametric inference … Continue reading →