A practical French-language textbook introducing the foundational quantitative methods used in psychological research. The work focuses on descriptive statistics, helping readers organize, summarize, and interpret data before moving on to more advanced inferential methods. It covers core concepts such as frequency distributions, measures of central tendency, variability, graphical representation, and the application of statistical procedures to psychology-related problems. Written for students and practitioners, the book emphasizes clear explanations, structured learning, and applied examples drawn from behavioral and social-science contexts. Its pedagogical approach makes it suitable for coursework, self-study, or review of essential statistical tools used in psychology.

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