Dr. Evans was surprised that many of his participants scored much lower than expected on his pretest. When he observed a significant increase in scores on the posttest, he was cautious in attributing the effect to his treatment alone
Which of the following threats to internal validity was Dr. Evans concerned about?
a) instrumentation
b) selection
c) regression
d) testing
c
Political Science
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Statistical information can be displayed in which of the following ways?
A. pie charts B. line figures C. bar charts D. all of these
Political Science
The first ten amendments to the Constitution are known as the Bill of Rights
Indicate whether the statement is true or false
Political Science
When were the terms First World, Second World, and Third World first used?
a. Before World War I b. Between World War I and World War II c. During World War II d. During the Cold War e. After the Cold War
Political Science
Intergovernmental revenue transfers account for ______ of local government spending.
a. three-quarters b. half c. one-quarter d. one-third
Political Science