If groups are the same on the dependent variable at the start of the study,
A) they are said to be equivalent.
B) the same type of conclusions can be drawn as if they were randomly assigned.
C) they may still differ on variables that could be potentially confounding.
D) Both A and B
Answer: C
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The subsequent abandonment of the Poll Tax by the Conservative Party by 1993 demonstrates which of the following?
A. Government power is limited in the UK. B. Reforms introduced by the Conservative Party are generally rejected. C. The balance of power in the English Parliament is fragile and easily disturbed. D. The reforms proposed through the Poll Tax favored those who did not own property. E. The public is generally hostile and suspicious toward tax reforms
In 1974, the US government passed this act to establish the IRB system thereby protecting participants in research
a. National Recovery Act b. National Ethics Act c. National Research Act d. Ethical Review Act