Weighting – Healthcare Economist

What are we weighting for?

2013-05-07Jason ShafrinLeave a comment

Weighting has a number of uses. For instance, one can use weighting to estimate population sample statistics. The Panel Study of Income Dynamics (PSID) for instance oversamples households with low income. To get nationally mean values, one must reweight the PSID values, either using survey weights or matching to a nationally representative sample such as…

Generalizing the Results of Randomized Controlled Trials

2012-07-16Jason Shafrin1 Comment

The benefit of randomized controlled trials is that one can identify the causal effect of a certain treatment in the absence of selection effects (assuming the randomization is properly done). However, RCT results often do not generalize to the larger population. Reasons for this include: The RCT population may not be representative of the population…