In the Case Where the Experimental Groups and the Control

question 5

Multiple Choice

In the case where the experimental groups and the control groups are not equivalent,which of the following should not be used to address this issue?

• A) proceed with the experiment because you can address the issues during your statistical analysis
• B) match the groups on important variables
• C) use comparison groups instead of control groups
• D) match groups on any variables that are significant for the fluctuation in the dependent variable

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Definitions:

Monotremes

A group of egg-laying mammals that includes the platypus and echidnas.

Marsupials

Mammals that carry and nourish their newborns in an external pouch, including species such as kangaroos, koalas, and opossums.

Placentals

Mammals that nourish their developing fetus via a placenta, an organ that facilitates the exchange of nutrients, gases, and wastes between the mother and fetus.

Notochord

A flexible rod-shaped structure that provides support in the embryonic stages of all chordates, including humans.