Threats to internal validity include all of the following EXCEPT
A) selection bias. B) quasi-experimental.
C) testing. D) history.
B
Political Science
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_____ research seeks to quantify the strength and direction of relationships among two or more variables
A) Experimental B) Differential C) Correlational D) Naturalistic
Political Science
In the process of deciding how large to make a sample, researchers usually assume that there will be minimum variation in the variables
Indicate whether the statement is true or false.
Political Science