Which of the following illustrates reliability?
a. Dean takes an IQ test and scores at the 60th percentile.
b. Scores on a new test of reading comprehension correlate highly with scores on well established reading comprehension tests.
c. Fred scores poorly on one school's entrance exam but does better on another.
d. Jacquie takes three practice GRE verbal exams and scores 300, 299, and 301 .
D
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According to statisticians, approximately how large must a random sample be to produce results that are accurate within plus or minus three percentage points 95 percent of the time for a universe of 500,000 or more?
a. 1,000 b. 11,000 c. 10,000 d. 100,000 e. 1,000,000
Who is considered one of the most powerful vice presidents in history?
A) Richard Nixon B) Richard Cheney C) Al Gore D) George H.W. Bush E) John Adams
Which of the following did the Safavid rulers undertake by advocating Shi'i Islam in Iran?
A. They decentralized control over religious worship. B. They gave Shi'i religious authorities a role in governing their empire. C. They deliberately avoided the mixing of religion and state. D. They abolished the system of formation of religious leaders. E. They advocated pre?Islamic Persian civilization in the country.
The Social Security Act induced states to enact which of the following programs through the imposition of the payroll tax on all employers?
A. Supplemental Security Income B. Unemployment Compensation C. Temporary Assistance for Needy Families D. Supplemental Nutrition Assistance Program