You and a Friend Were in Line for a Movie

question 67

Multiple Choice

You and a friend were in line for a movie when you noticed the woman in front of you sneezing and coughing. Both of you were equally exposed to the woman's virus, but over the next few days, only your friend acquired flu-like symptoms and was ill for almost a week before recovering. Which one of the following is a logical explanation for this?

• A) Your friend had antibodies to that virus.
• B) You had an adaptive immunity to that virus.
• C) Your friend had an autoimmune disorder.
• D) Your friend had allergies.

---

Definitions:

Predictive Validity

How well a score from a test or scale indicates anticipated performance in tasks or outcomes that are related.

IQ Test

A standardized assessment used to measure human intelligence and cognitive abilities in relation to an age-group norm.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together, showing the strength and direction of a relationship.

Reliability

The consistency and stability of test scores or measurements over time or across different occasions.