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There are three treatment conditions in a 2*2*2 factorial design.

A) True
B) False

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If the A x B interaction is significant,then at least one of the two main effects also must be significant.

A) True
B) False

Correct Answer

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Which of the following is not a possible outcome from a 2*2 factorial design?


A) two main effects and an interaction
B) two main effects and no interaction
C) no main effect for either factor but an interaction
D) The other three choices are all possible outcomes.

E) B) and C)
F) A) and D)

Correct Answer

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In order to determine whether factors influence or interact with each other,a researcher must use


A) two experiments.
B) a factorial design.
C) a between-subjects design.
D) a mixed design.

E) A) and B)
F) C) and D)

Correct Answer

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A two-factor experimental design evaluates two main effects and one interaction.

A) True
B) False

Correct Answer

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The pretest-posttest control group design is an example of a


A) between-subjects design.
B) within-subjects design.
C) repeated measures design.
D) mixed design.

E) A) and C)
F) B) and C)

Correct Answer

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It is possible for the results of a two-factor study to show an interaction even though there is no main effect for either factor.

A) True
B) False

Correct Answer

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