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Library CLOSED until further notice

View entire Academic Year.

COVID-19 (Coronavirus) Limited Access

Beginning Monday, March 23, Hoover Library will be CLOSED until further notice. Virtual reference services (use the "ASK US" or "CHAT" button) will be available from 1 PM - 9 PM Sunday, 9 AM - 9 PM Monday-Thursday, and 9 AM - 4 PM Friday. Hours are subject to change at any time. Please see our Hours page for current building availability. For more information, see the McDaniel College COVID-19 Information Page
Faculty: Please see our COVID-19 Library Access
Students: Please see our COVID-19 Student Access page.

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: