The IQ (Intelligence Quotient) Test Scores Are Normally Distributed and Are

question 58

Multiple Choice

The IQ (Intelligence Quotient) test scores are normally distributed and are scaled to a mean of 100 and a standard deviation of 15. If a person's IQ has a z-score of 1.8, what is the IQ score?

• A)124
• B)127
• C)129
• D)131

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Definitions:

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems, and is involved in sleep and emotional activity.

Pituitary

A small endocrine gland located at the base of the brain which produces hormones regulating growth, metabolism, and the functioning of other endocrine glands.

Gonads

The primary reproductive organs that produce gametes (e.g., ovaries in females and testes in males) and sex hormones.

Adrenals

Glands located above the kidneys that produce hormones such as adrenaline and cortisol, which help control stress responses, blood pressure, and metabolism.