How Many Participants Would Be Needed for a Repeated-Measures Experiment

question 28

Multiple Choice

How many participants would be needed for a repeated-measures experiment comparing four different treatment conditions,which investigated 20 participants in each treatment?

• A) 20
• B) 5
• C) 80
• D) Cannot answer without more information

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Definitions:

Stethoscope Endpiece

The part of a stethoscope that is placed against the patient's skin to listen to internal body sounds, such as heartbeats and breathing.

Bell Side

The larger, concave side of a stethoscope used for listening to lower-pitched sounds in the body such as heart murmurs.

Percussing Over Liver

The act of tapping on the skin overlying the liver to assess its size and density, part of a physical examination to detect liver abnormalities.

Dull Sound

A sound with low resonance, often indicative of a change in lung or pleural space in medical contexts.