The Figure Below Is from an Experiment on Athletes

question 56

Multiple Choice

The figure below is from an experiment on athletes. The "live high, train low" group lived for 18 days in rooms with a simulated altitude of 3,000 m, while training (exercising) at 1,200 m. Use this information and this figure to answer the following questions.
-The scientists studied 11 elite runners in this experiment. How does their sample size affect the validity of their study?

• A)The small sample size limits how broadly their conclusions apply to athletes in general.
• B)The sample size is sufficient to make conclusions about all endurance athletes, because there are very few endurance athletes.
• C)Although the sample size was small, scientists should still consider these results as reliable as results from larger sample sizes because it is very hard to study humans.

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Definitions:

BMI

Body Mass Index, a numerical calculation comparing a person's weight and height, used to assess if an individual has a healthy weight range.

Dorsal Gluteal

An anatomical site on the upper buttock, once common for intramuscular injections but now less favored due to risk of nerve damage.

Vastus Lateralis

A muscle located on the side of the thigh, part of the quadriceps group, and commonly used as an injection site.

Intramuscularly

A method of administering medication directly into the muscle tissue, allowing for rapid absorption into the bloodstream.