Oftentimes a single measure may not provide a true measure of a variable. In this case, researchers can combine several different measures together.
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Q1: Validity is closely related to the principle
Q3: Higher values of Cronbach's alpha represent higher
Q4: Many researchers make a useful analogy to
Q5: Reliability can be tested in several methods,
Q6: Natural disaster or climate change is the
Q7: History is the most difficult threat to
Q8: Testing effect is a problem when change
Q9: Because of statistical regression, it is important
Q10: The best way to overcome selection bias
Q11: Diffusion of treatment in regards to validity
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