Quasi-Experimental Designs All of these describe an ex post facto study except
A)different treatment groups.
B)high degree of imposition of units.
C)random assignment of subjects to treatment groups.
D)rigorous control procedures.

Question

Quizplus · Accepted Answer

Ex post facto studies are non-experimental designs that involve observing phenomena after they have occurred, without intervention or manipulation of variables. Random assignment of subjects to treatment groups is a key feature of experimental designs, not ex post facto studies. Different treatment groups, rigorous control procedures, and a high degree of imposition of units can all be features of quasi-experimental designs, which are often used when it is not possible or ethical to conduct true experiments.

Quasi-Experimental Designs All of These Describe an Ex Post Facto