Experiments sometimes include measuring the variable/concept both before and after an intervention of some sort. This technique is known as a
A. cross-sectional testing.
B. primary test and secondary test.
C. pretest and posttest.
D. control and experiment.
Answer: C
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Indicate whether this statement is true or false.
Institutions
a. work for the welfare of everyone in society. b. are supported by the powerful. c. are voted on by the people. d. are new and modern.
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Indicate whether the statement is true or false