Two Matched Groups Matching Procedures Are Especially Useful When We

question 45

Multiple Choice

Two Matched Groups Matching procedures are especially useful when we have small numbers of subjects because

• A)matching increases the external validity of our experiment.
• B)matching produces a normal distribution of scores.
• C)random assignment can only be used when there are 20 subjects per group.
• D)random assignment may not produce similar groups.

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Definitions:

Helicobacter Pylori

A type of bacteria that infects the stomach lining and is one of the leading causes of ulcers and stomach inflammation.

Peptic Ulcers

sores that develop on the lining of the stomach, lower esophagus, or small intestine, usually due to infection or chronic use of anti-inflammatory medications.

Causal Agent

A factor that is directly responsible for causing a certain outcome or condition, often used in the context of diseases or environmental changes.

Bile

The fluid secreted by the liver; emulsifies fats.