Selection bias is defined as
A) the distortion caused when a sampling method systematically includes or excludes people with certain attitudes from the sample.
B) instances when the control sample is used incorrectly.
C) an instance when the results prove that the original method used was invalid.
D) an instance when the sample to be questioned is chosen randomly.
E) all of the above
A
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Which of the following activities would be a good example of congressional casework?
a. analysis of an incumbent's policy positions prior to a debate b. analysis of police force effectiveness c. analysis of water quality within a district d. assistance to a constituent in obtaining a Social Security check
____________ were highly skilled men who acquired subjects for dissection by medical professionals.
A. Night prowlers B. Dissection assistants C. Cadaver transport agents D. Resource managers
What is the total number of senators?
a. 50 b. 100 c. 150 d. 200
The Secretary of the Treasury is also the Chairman of the Federal Reserve Board
Indicate whether the statement is true or false