Question 5 This is the reason that ex post facto control group design should be
ID: 3010117 • Letter: Q
Question
Question 5
This is the reason that ex post facto control group design should be considered nonexperimental rather than quasi-experimental:
It does not employ random assignment to the experimental and comparison groups.
It lacks a posttest.
It lacks internal validity.
The comparison group is designated only after the intervention has occurred.
A.It does not employ random assignment to the experimental and comparison groups.
B.It lacks a posttest.
C.It lacks internal validity.
D.The comparison group is designated only after the intervention has occurred.
Explanation / Answer
A non- experimental design in which comparison groups are selected after the treatment ,programming or other variation in the independent variable has occurred .Ex post Facto designs do not use random assignments.
Ans. A, D
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