Social Studies, 20.03.2020 16:56 hiiliohi3823
When a researcher asks the question, "Have subjects been pre-selected so as to represent the extremes on the variable of interest?", she is concerned with which one of the following potential threats to internal validity?
A. Regression effect
B. Subject selection
C. Testing effect
D. Maturation
Answers: 2
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When a researcher asks the question, "Have subjects been pre-selected so as to represent the extreme...
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