Day 8: Performing statistical testing with complex survey data

Why Weighted Data + Multivariable Regression = Gold Standard in Survey Analysis "A bivariate test is like shouting in a noisy room. Multivariable regression with survey weights? That’s moving to a quiet, soundproof studio — where only the signal matters." 🔊 The Problem with Bivariate Tests (The "Noisy Room") When you run a simple chi-square or t-test between two variables (e.g., rural/urban vs. tobacco use): You ignore confounders → spurious associations Result? Bias. With complex survey data, we need to further account for the weighting and complex survey design. You ignore sampling design → biased standard errors You ignore weights → non-representative estimates This video shows how to perform statistical tests with complex survey data using the Chisquares platform.