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In Campbell and Ross's analysis of the effect of the Connecticut crackdown on speeding, they were able to eliminate the threat of history by using a __________ design, which showed that the same decline in traffic fatalities did not occur in four neighboring states.
Q2: Following the pilot testing and modification phase,
Q10: Which technique is used when you interview
Q11: Which of the following is a strategy
Q13: Putting colored cards into a bowl and
Q14: If a population is composed of diverse
Q19: The two factors that are varied in
Q21: Which threat to the validity of an
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Q51: Random-digit dialing serves to<br>A) increase response rates.<br>B)
Q82: Which of the following questions concerns reliability?<br>A)