Suppose You Have a Normal Distribution of Test Scores with a Mean

question 15

Multiple Choice

Suppose you have a normal distribution of test scores with a mean of 50 and a standard deviation of 5. What percentage of scores falls between 40 and 60?

• A) 20 percent
• B) 50 percent
• C) 68 percent
• D) 95 percent

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Definitions:

Biofeedback

A technique that trains people to improve their health and performance by controlling physiological processes that are normally automatic, such as heart rate or blood pressure.

Operant Conditioning

Modification of behavior strength through the calculated use of either incentives or disciplinary actions.

Token Economy

A system of behavior modification based on the systematic reinforcement of target behavior, using tokens as conditional reinforcers which can be exchanged for rewards.

Applied Behavior Analysis

A therapeutic approach based on the principles of behaviorism that seeks to modify human behaviors, especially as a tool in the treatment of autism and other developmental disorders.