The Adjusted R² Accounts for the Number of Independent Variables

question 116

Multiple Choice

The adjusted R² accounts for the number of independent variables by ____________.

• A) Adding one to the R²
• B) Using the degrees of freedom
• C) Multiplying by the multiple standard error of the estimate
• D) Using a subscript for R²

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Definitions:

Internal Validity

The extent to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome.

Observed Score

The score actually obtained by an individual on a test or measurement.

True Score

The true score in psychometrics is an estimate of an individual's actual ability or trait level, free from measurement error.

Error Score

The difference between an observed value and the true value in data collections or experiments, indicating the amount of error in measurements.