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Survey Guidelines

Sample Size Calculation

Before conducting a survey, researchers often ask themselves how large the sample of respondents needs to be in order to answer their research questions. In this guide, we discuss how sample size calculation is influenced by sample design. We give practical advice on how to calculate sample size for complex samples.

Felderer, Barbara, Sand, Matthias und Bruch, Christian (2022). Fallzahlplanung für komplexe Stichprobendesigns. Mannheim, GESIS – Leibniz-Institut für Sozialwissenschaften (GESIS Survey Guidelines). DOI: