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RSM 550 - Introduction to Research Methodology: Testing for Relationships/Correlations Calculators

Pearson r

Use this calculator from to determine the correlation coefficient (the Pearson r) and coefficient of determination (r²) for any two sets of data:

Spearman Rank Correlation

Use this calculator from VassarStats--a supremely, useful website for statistical computation created by Professor Emeritus of Psychology at Vassar College Richard Lowry--to determine the Spearman rank correlation coefficient (rs, ρ, or rρ) for any two sets of data:

The data can be ranked or unranked.


Use this graphing calculator from to generate a scattergram for any two sets of data:

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