**Apologies for cross-posting** Dear colleagues, When are group differences genuine, and when are they shaped by methodological artifacts or compositional imbalances? GESIS invites you to explore these and other questions in our upcoming workshops on modeling group differences. Topics range from ensuring measurement comparability across groups to accounting for nested data structures: * 27. - 30.01. Decomposition Methods in the Social Sciences<https://tinyurl.com/01-25-decomposition-methods> (Mannheim) * 18. - 19.02. Propensity Score Matching: Computation and Balance Estimation for two and more groups in R<https://tinyurl.com/02-25-PSM-comp-balance-R> (Online) * 3. 12. - 14.03. Einführung in Strukturgleichungsmodellierung<https://tinyurl.com/03-25-struktgleichungsmodel> (Online) * 14. - 16.04. Latent Class Analysis<https://tinyurl.com/04-25-latent-class-analysis> (Cologne) * 26. - 27.05. Einführung in die Mehrebenen-Strukturgleichungsmodellierung<https://tinyurl.com/05-25-intro-Mehreb-SGM> (Online) For more details or to register, please visit our website<https://training.gesis.org/> or email alisa.remizova@gesis.org<mailto:alisa.remizova@gesis.org>. We would also appreciate your help in spreading the word about this announcement. May your group comparisons be meaningful, GESIS Training Team --- Alisa Remizova alisa.remizova@gesis.org<mailto:alisa.remizova@gesis.org> Scientific Coordinator of GESIS Workshops GESIS - Leibniz Institute for the Social Sciences https://training.gesis.org/