Matthew Is Conducting Research to Learn Whether Chewing Peppermint Gum

question 9

Multiple Choice

Matthew is conducting research to learn whether chewing peppermint gum during learning will improve recall if the participants are also chewing peppermint gum when they take a test.Matthew assigns the first 10 people who arrive to his experimental group.He assigns the last 10 people to his control group.What mistake has Matthew already made?

• A) He didn't ask if anyone prefers cinnamon gum.
• B) He forgot to ask how old each of the subjects is.
• C) He failed to use random assignment.
• D) He forgot that food (including gum)is always confounded.

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Definitions:

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A religious movement in the 16th century that led to the creation of Protestant Christianity, challenging the authority and practices of the Catholic Church.

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