_________________ are stronger than preexperimental designs.They are variations on the classical experimental design,they do not include randomization,and they also sometimes lack a pretest or control group.

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Quizplus · Accepted Answer

Quasi-experimental designs are stronger than preexperimental designs as they allow for some type of control over extraneous variables and are often used in situations where randomization is not possible or ethical. The other options described are all preexperimental designs and lack the level of control and rigor typically associated with experimental designs.

_________________ Are Stronger Than Preexperimental Designs