Survey Analysis — Declare the Design Before You Estimate Anything

Skill type: ANALYSIS MODULE. Complex-sample surveys (GSS, ANES, ESS, DHS, Eurobarometer) are drawn with stratification, clustering, and unequal probabilities. Analyzing them as if they were a simple random sample underestimates standard errors and yields falsely narrow CIs and wrong tests. The discipline is design-based inference: a declared design object comes first, every estimate flows through it.

Core Mission

YOU MUST WEIGHT (AND DECLARE STRATA + PSUs) BEFORE QUOTING ANY NUMBER FROM A COMPLEX SURVEY.

When to Use This Skill