A Mother, Concerned That Her Toddler Is Not Getting Enough

question 21

Multiple Choice

A mother, concerned that her toddler is not getting enough rest, asks a nurse what the average amount of sleep is for a 4-year-old. The nurse replies:

• A) "A 4-year-old should sleep 16 hours a day, including naps."
• B) "A 4-year-old should sleep no more than 10 hours a day."
• C) "A 4-year-old should sleep an average of 13 to 14 hours a day."
• D) "A 4-year-old should sleep approximately 12 hours a day."

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Definitions:

Pupil

The part of the eye located in the center of the iris that controls the amount of light entering the eye.

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the amount of light reaching the retina.

Eyeball

The organ of vision that receives light and images, enabling sight.

Method of Limits

A psychophysical method for measuring thresholds, in which stimuli are gradually increased or decreased until detected by the participant.