In the First Month, Infants May Smile

question 25

Multiple Choice

In the first month, infants may smile

• A) while asleep.
• B) when asleep and when softly touched - serving as social smiles.
• C) while asleep and when softly touched - reflexive responses to bodily states.
• D) when they see another person. .

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Definitions:

Specificity

The ability of a test to correctly identify those without the disease or condition being tested for.

Positive Predictive Value

The probability that subjects with a positive screening test truly have the disease.

Prevalence

The total number of cases of a disease that exist in a particular population at a specific time.

False-Positive Diagnosis

An erroneous identification where a test incorrectly indicates the presence of a condition that is actually absent.