Foundational Correlation – The Correlation Coefficient (13-5)
Research By Design
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Foundational Correlation – The Correlation Coefficient (13-5) breaks down Pearson’s r as a tool to measure the strength and direction of linear relationships between variables, showing how variability affects correlation and how to interpret its magnitude using simple rules.
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Greater variability equals weaker correlations, while greater consistency, or low variability, equals stronger correlations.
—Research By Design
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