In Using a Regression Model, If a New Independent Variable

question 9

Multiple Choice

In using a regression model, if a new independent variable is added, the value of R² (the coefficient of multiple determination) will ________ decrease.

• A) always
• B) sometimes
• C) never

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Definitions:

Worse than Average Effect

The cognitive bias where individuals undervalue their own qualities and abilities in comparison to others.

Social Comparison Theory

A theory positing that individuals determine their own social and personal worth based on how they stack up against others.

Better than Average Effect

A cognitive bias where individuals overestimate their own qualities and abilities relative to others.

Disapproving Expression

A facial gesture or communication that conveys disapproval, dissatisfication, or disagreement.