If a Simple Pearson Correlation Value =

question 47

Multiple Choice

If a simple Pearson correlation value = .75, what percentage of variance is unaccounted for?

• A)25%
• B)44%
• C)56%
• D)75%

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Definitions:

Standard Error of Estimate

A measure of the accuracy of predictions made with a regression line, indicating the typical distance that the observed values fall from the regression line.

Coefficient of Determination

A statistical measure represented by R-squared, indicating the proportion of the variance in the dependent variable predictable from the independent variable(s).

Unexplained Variation

The portion of the total variation in a set of data that cannot be attributed to the variables considered in a study or model.

Unbiased Estimator

A statistic used to estimate a parameter of a population that, on average, exactly equals the true parameter.