Rules of thumb for interpreting the size of a correlation coefficient

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Size of positive correlation Size of negative correlation Interpretation
.90 to 1.00 -.90 to -1.00 Very high positive (negative) correlation
.70 to .90 -.70 to -.90 High positive (negative) correlation
.50 to .70 -.50 to -.70 Moderate positive (negative) correlation
.30 to .50 -.30 to -.50 Low positive (negative) correlation
.00 to .30 .00 to -.30 Little, if any, correlation


contributed by Frank LaBanca EdD

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