________ are distinguished by the fact that the researcher can randomly assign test units to experimental groups and also randomly assign treatments to experimental groups.
A) Preexperimental designs
B) True experimental designs
C) Quasi-experimental designs
D) Statistical designs
E) Concurrent designs

Question

Quizplus · Accepted Answer

True experimental designs are distinguished by the fact that the researcher can randomly assign test units to experimental groups and also randomly assign treatments to experimental groups. Preexperimental designs, quasi-experimental designs, statistical designs, and concurrent designs do not necessarily have these features.

________ Are Distinguished by the Fact That the Researcher Can