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GUILFORD’S SUGGESTED INTERPRETATION FOR CORRELATION COEFFICIENT VALUES

Value Interpretation
Less than .20 Less than .20 Slight, almost negligible relationship
.20 - .40 .20 - .40 Low correlation; definite but small relationship
.40 - .70 .40 - .70 Moderate correlation; substantial relationship
.70 - .90 .70 - .90 High correlation; marked relationship
.90 - 1.00 .90 – 1.00 Very high correlation; very dependable relationship

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