The Experimental and Control Groups Should Be the Same in Every

question 65

Multiple Choice

The experimental and control groups should be the same in every respect except for

• A) the number of subjects in each group.
• B) the variation created by the manipulation of the independent variable.
• C) the assumptions underlying the research question.
• D) the method of measuring the dependent variable.

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Definitions:

Tunicates

Marine invertebrates, also known as sea squirts, that are part of the subphylum Tunicata, characterized by a tough outer tunic and filter-feeding mode of nutrition.

Lancelets

Small marine animals belonging to the subphylum Cephalochordata, characterized by their fish-like shape and a notochord extending the length of their body.

Out-of-Africa Hypothesis

A theory suggesting that modern humans originated in Africa before dispersing to other parts of the world.

Homo Sapiens

The species name for modern humans, characterized by bipedalism and a large brain capacity relative to body size.