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Fill in the Blank



 This activity contains 8 questions.

Question 1.
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The purpose of research is to make causal inferences about the relationship between the independent and dependent variables. 
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Question 2.
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Random indicates how subjects were chosen from the population. 
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Question 3.
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Fishing and the error rate problem is an example of validity. 
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Question 4.
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Controlling for history effects improves validity. 
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Question 5.
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Mono-operation bias, where having only a single type of intervention or dependent variable when multiple types would lead to more assurance, is a threat to validity. 
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Question 6.
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is the extent to which results can be generalized to different times, places, or contexts. 
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Question 7.
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Non-equivalent groups designs are designs. 
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Question 8.
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designs measure groups repeatedly before and after treatments. 
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