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[A simple method to determine and evaluate "effect size"].
Nicolas Guéguen1, Marcel Lourel, Alexandra Pascual
1Université de Bretagne, Lorient cedex, France. nicolas.gueguen@univ-ubs.fr
Sante (Montrouge, France)
|August 30, 2011
Summary
Effect size measurement is crucial in psychological and social behavior research, complementing statistical significance tests. This paper explains the concept, indicators, and interpretation of effect sizes for researchers.
Area of Science:
- Psychology
- Social Sciences
- Behavioral Science
Context:
- Journals increasingly require effect size reporting alongside statistical significance.
- Standard statistical tests alone may not fully capture the magnitude of effects.
Purpose:
- To present the conceptual importance of effect sizes.
- To outline key effect size indicators.
- To provide guidance on interpreting effect sizes.
Summary:
- Effect sizes quantify the magnitude of phenomena, offering a standardized measure of impact.
- Key indicators like Cohen's d and correlation coefficients are discussed.
- Interpretation guidelines are provided to understand the practical significance of findings.
Impact:
- Enhances the rigor and interpretability of psychological and social behavior research.
- Facilitates comparison of findings across studies.
- Promotes a deeper understanding of observed effects beyond mere statistical significance.
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