Experimental designs sometimes called true experimental designs)are characterized by random assignment to treatment and control groups and include the classical,posttest-only control group,and Solomon four-group designs.

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Experimental designs, often referred to as true experimental designs, are characterized by the random assignment of participants to treatment and control groups. This category includes designs such as the classical design, the posttest-only control group design, and the Solomon four-group design, all of which are structured to rigorously test hypotheses by controlling for extraneous variables through randomization.

Experimental Designs Sometimes Called True Experimental Designs)are Characterized by Random