The Coefficient of Determination (R²)tells You

question 22

Multiple Choice

The coefficient of determination (r²) tells you

• A)that the coefficient of correlation (r)is larger than 1.
• B)whether r has any significance.
• C)that you should not partition the total variation.
• D)the proportion of total variation that is explained.

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Definitions:

Biologically Determined

Traits, behaviors, or characteristics that are influenced by genetic makeup rather than environmental factors.

Instinct

Natural, unchanging behaviors exhibited by animals in reaction to specific triggers.

Drive-Reduction

A theory of motivation that posits the reduction of physiological needs drives behavior towards achieving homeostasis.

Arousal Approach

a theory in psychology that focuses on how arousal levels affect performance, suggesting an optimal level of arousal for peak performance depending on the task complexity.