IQ Scores Based on the Wechsler Adult Intelligence Scale (WAIS)

question 40

Multiple Choice

IQ scores based on the Wechsler Adult Intelligence Scale (WAIS) are assumed to be normally distributed with a mean of 100 and a standard deviation of 15. What is the z-score for an IQ of 125?

• A) z = -1.25
• B) z = 1.25
• C) z = 1.67
• D) z = 5.05

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Definitions:

Behavior Modification

The use of empirically demonstrated techniques to improve behaviors, often by changing the environment’s response to those behaviors.

Motivated

The condition of being eager or willing to act or work toward a goal due to personal desire or external incentive.

Self-Disciplined

The ability to control one's feelings, impulses, and actions in order to achieve long-term goals or adhere to a particular set of standards.

Excuses

Reasons or explanations provided to justify actions or decisions, often used to mitigate blame or responsibility.