The entry helps introduces practical information on one of the most fundamental concepts of basic descriptive data analysis. It is part of a compact A-Z with the goal of providing undergraduate and postgraduate students with a wide range of concepts, methods, and theories of qualitative and quantitative research.

Reference : Van Ingelgom, Virginie, and Alban Versailles. 2020. ‘Covariance. A First Step in the Analysis of the Relationship between Two Variables’. In Research Methods in the Social Sciences: An A-Z of Key Concepts, eds. Jean-Frédéric Morin, Christian Olsson, and Ece Özlem Atikcan. Oxford: Oxford University Press.