External Validity in an Experiment Is Most Related To

question 44

Multiple Choice

External validity in an experiment is most related to:

• A) participant assignment to groups.
• B) representativeness of the sample.
• C) confounding variables.
• D) a pretest.

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Definitions:

Pulse Strength

A qualitative measure of the force or quality of the heartbeat as felt through the walls of the arteries.

Bowel Sounds

The noises made by the movement of the intestines as they push food through the gastrointestinal tract, typically heard with a stethoscope during a physical exam.

Vesicular Lung Sounds

Breath sounds normally heard over most lung fields, characterized by a soft, rustling quality associated with air moving through smaller airways.

Bronchovesicular Breath Sounds

Normal breath sounds heard over the central chest or back, indicating air moving through the larger airways.