Introduction to Weighting with a focus on Nonresponse Adjustment
Sessions and Times
Two sessions, 12:30 to 16:30.
Overview
This course covers why we need to deal with nonresponse bias in surveys and how weighting can be a good solution. The course explores the 3 levels of weighting, correcting for unequal probabilities of selection in the sampling design, adjusting for nonresponse and calibrating to population totals, but focuses on nonresponse adjustment. This course introduces various weighting methods that can be used and their pros and cons.
Topics Covered
- Response rates versus nonresponse bias.
- The nonresponse bias formula and its implications.
- Study designs to find out who the nonrespondents are.
- Correlates of nonresponse bias.
- A short “refresher” of the statistical concepts used on the course.
- Background on weighting including the 3 standard steps of design weights, nonresponse weights and then calibration to population values. (Each weighting method comes with examples and a discussion of the pros and cons of that method.)
- Design weights.
- Basic weighting class adjustment for nonresponse.
Target Audience
Participants should have knowledge of surveys and be familiar with the statistical concepts of sampling variance, confidence intervals and regression analysis.
Cost
This course is currently only available for in-house delivery, for further information and rates please contact us on natcenlearning@natcen.ac.uk.