Even if the research hypothesis is true, an experiment may not produce significant results because:
A) sampling error and other uncontrolled variables may cause too little variance in the population
B) the sample that happens to be selected from the population being studied may not be extreme enough to provide a clear case for rejecting the null hypothesis
C) the original population is very extreme with regard to its mean and standard deviation, leading the researcher to prove the null hypothesis
D) just as there is a probability of rejecting the null hypothesis, there is always a chance that it must be accepted
B
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Advocates of fair trade promote which of the following as standard practices
a. market incentives b. the right to form unions c. economic liberalization d. expanded capital flow
Conflict theorists argue that food shortages result from which of the following?
a. overpopulation b. war c. lack of public investment in agricultural research d. inequitable distribution of power and resources
Nearly half of the illegal immigrant population arrived legally as visitors to the United States but became illegal immigrants when they exceeded the time allocated to them. These people fall into the category of __________.
A. overstayers B. interlopers C. illegals D. entry violators
According to research, women are still reluctant to enter engineering fields due to
a. the high levels of commitment required. b. a culture of invisible masculinity. c. resistance from university professors. d. biological variations in spatial intelligence.