In research on the effects of noise on sleep, a researcher wonders whether disrupted sleep may be due to drinking coffee rather than to living near an airport. What type of hypothesis is this?
A) a confounding variable hypothesis
B) a null hypothesis
C) a research hypothesis
D) a moot hypothesis
Answer: A
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Members of the Chamber of Deputies are elected through
a. a first-past-the-post elections in individual districts. b. a system of proportional representation. c. appointment by the Mexican president. d. a combination of proportional representation and simple majority. e. appointment by their regional legislatures.
Observers question the democratic nature of Iranian elections because of
a. the two-round process of elections for the Majlis. b. the free media time offered to candidates by the government. c. the role of the Guardian Council in approving candidates. d. the requirement that the candidates have a university degree. e. the age limitation for candidates.
Brown v. Board of Education overturned __________
a. Milliken v. Bradley b. Bakke v. University of California Board of Regents c. Plessy v. Ferguson d. Romer v. Evans –
Which of the following stages of the rulemaking process is considered to be the current access point to make an impact?
A. evaluation of a rule B. pre-rule C. final rule D. notice of proposed rulemaking