Samples and populations · Survey design
Survey Weights and Clustering
Who gets represented, and how much independent information is present?
Page 1 of 7 · Big Picture
The big picture: Survey Weights and Clustering
Who gets represented, and how much independent information is present?
Why a policy analyst should care
Complex surveys determine both who each observation represents and how much independent information the sample contains; ignoring either can misstate population evidence.
Follow the idea from the opening question to a practical decision. These are the conceptual moves this module will develop:
1 Question Who is represented—and how independently?
2 Explore Representation and dependence
3 Formalize Two distinct design jobs
4 Transfer Audit a survey claim
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