We seek to control extraneous variables in research because they
A) are threats to reliability.
B) distract the participants.
C) reduce validity.
D) reflect the experimenter's planned biases.
Answer: C
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a. majority leader b. majority whip c. Sergeant-at-Arms d. Speaker of the House
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A) construct B) internal C) external D) statistical Fill in the blank with the correct answer.
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Indicate whether the statement is true or false