If plausible alternative explanations have been ruled out,a study can be said to have established ____.
A) external validity
B) internal validity
C) experimental validity
D) statistical validity
Correct Answer:
Verified
Q2: A group comparable in every way possible
Q3: A research study that does not have
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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