In Regression an Observation Has High Leverage When

question 752

Multiple Choice

In regression an observation has high leverage when

• A) removing the observation causes a large change in one of more coefficients of the model.
• B) the observation is perfectly predicted by the regression.
• C) the observation is poorly predicted by the regression.
• D) the observation has a combination of x-values that is far from the center of the data.
• E) none of these

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Definitions:

Schachter And Singer Theory

A psychological theory stating that emotions are determined by physiological arousal and the cognitive labeling of that arousal based on environmental cues.

James-Lange Theory

A theory of emotion suggesting that physiological arousal precedes the experience of emotion; we feel sad because we cry, angry because we strike, afraid because we tremble.

Basic Emotions

Fundamental emotions that are universally recognised and experienced by all humans regardless of culture, including happiness, sadness, fear, disgust, anger, and surprise.

Facial Expression

The visual communication of emotion, intention, or social information through movements or positions of the muscles beneath the skin of the face.