A research study that does not have random assignment can still be an experiment if there is a proper control group.
Correct Answer:
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Q1: If plausible alternative explanations have been ruled
Q2: A group comparable in every way possible
Q4: In resentful demoralization,the comparison group knows what
Q5: When an effect occurs when the proposed
Q6: Issues of cause and effect are closely
Q7: When some event other than the program
Q8: When a significant number of subjects drop
Q9: When the tests (or observers)used on the
Q10: In design notation,the letter R stands for
Q11: The only way to address threats to
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