In Correlation Analysis, the Strength of the Association Between the Variables

question 21

Multiple Choice

In correlation analysis, the strength of the association between the variables under investigation is determined by:

• A) how close the coefficient is to zero.
• B) how close the significance value is to 1.
• C) how close the coefficient is to ±1.
• D) whether the coefficient is positive or negative.

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Definitions:

Thermal Biofeedback

Feedback concerning changes in skin temperature.

Vasodilation

The widening of blood vessels, which decreases blood pressure and increases blood flow to certain areas of the body.

Skin Temperature

A measure of the surface temperature of the body, which can be influenced by various internal and external factors.

Qi Gong

A system of coordinated body posture and movement, breathing, and meditation used for health, spirituality, and martial arts training.