Other Sites


  1. Scatterplots
  2. Introduction to Pearson's Correlation
  3. Computational formula for Pearson's Correlation
  4. Example values of r
  5. Effect of restricted range on Pearson's Correlation
  6. Effect of linear transformations on Pearson's Correlation
  7. Spearman's rho
  8. Exercises

precision consulting

Analysis Tools
Analysis Lab
by David Lane and Joan Lu

by John Pezzullo

by Richard Lowry

Correlation coefficient, Rank correlation coefficient
by IFA services

Instructional Demos
Components of r
by David Lane and Joan Lu

Regression by eye
by David Lane and Joan Lu

Restriction of range
by David Lane and Joan Lu

Reliability and regression analysis
by David Lane and Joan Lu

Linear fit demo
by David Lane and Joan Lu

Linear regression
by Charles Stanton

by P. B. Stark

Regression applet
by Webster West

Several flash demos
by Juha Puranen

Many java demos
by Stefan Michiels and Bert Raeymaekers


Correlation and association
by P. B. Stark

Correlation (PDF)
by B. Gerstman

Bivariate data
by H. J. Newton, J. H. Carroll, N. Wang, and D. Whiting

Scatterplots, Correlation part 1, Correlation part 2
by Keith Dear

by David Stockburger

by G. David Garson

Correlation coefficient
by Will Hopkins of the University of Otago

Correlation and Dependence
by Dominique Drouet Mari and Samuel Kotz

Statistics for the Utterly Confused
by Lloyd Jaisingh

Forgotten Statistics : A Self-Teaching Refresher Course
by Jeffrey Clark

Chances Are : The Only Statistics Book You'll Ever Need
by Stephen Slavin

The Cartoon Guide to Statistics
by Larry Gonick and Woollcott Smith

Schaum's Outline of Theory and Problems of Elements of Statistics I: Descriptive Statistics and Probability
by Stephen Bernstein and Ruth Bernstein

Statistics the Easy Way
by Douglas Downing and Jeffrey Clark (Contributor)

Statistics You Can't Trust : A Friendly Guide to Clear Thinking About Statistics in Everyday Life
by Stephen Kent Campbell, Steve Campbell, Mark V. Hall (Illustrator)

Statistics : Cliffs Quick Review
by David H. Voelker, Peter Z. Orton