Opiates produce euphoria, which means they can ______.
A. induce sleep
B. make someone feel sad
C. make someone feel happy
D. increase anxiety
Answer: C
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__________ is demonstrated when a test measures consistently what it is trying to measure; __________ is demonstrated when a test actually measures what it is supposed to measure.
A. Validity; intelligence quotient B. Intelligence quotient; reliability C. Validity; reliability D. Reliability; validity
In the United States and Canada, children from ____ racial/ethnic backgrounds have the highest rates of poverty
a. African American and Native American b. Native American and Asian American c. Asian American and Mexican American d. African American and Mexican American
Alcoholism and drug abuse occur among medical professionals
a. at about the same rate as in the general population b. at a much higher rate than in the general population c. at a much lower rate than in the general population d. in only about 0.5% of the group e. in approximately 99.5% of the group
For a particular population a sample of n = 4 scores has an expected mean value of 10. For the same population, a sample of n = 25 scores would have an expected mean value of ____
A) 4? B) ?8 C) ?10 D) ?20