If a study was designed and two groups were formed which of the following would
ID: 3235119 • Letter: I
Question
If a study was designed and two groups were formed which of the following would need to happen to be one of the conditions necessary to infer causality from the results:
A.
There needs to be a lack of independence between groups.
B.
The sample must be randomly drawn from the population.
C.
Participants must select their own groups.
D.
Groups must be randomly formed by the experimenter.
If a study was designed and two groups were formed which of the following would need to happen to be one of the conditions necessary to infer causality from the results:
A.
There needs to be a lack of independence between groups.
B.
The sample must be randomly drawn from the population.
C.
Participants must select their own groups.
D.
Groups must be randomly formed by the experimenter.
Explanation / Answer
To eliminate selection threats to validity OPTION D is the correct answer. Groups are randomly formed by the experimenter.
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