Which of the following is sometimes called a "before-after design?"

Question

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The one-group pretest-posttest design is sometimes called a "before-after design" because it involves measuring the same group of participants before and after a treatment or intervention to assess its effectiveness. Option A is incorrect because preexperiment refers to a type of research design that lacks a control group. Option B is incorrect because the one-shot case study design only involves measuring participants after a treatment or intervention, with no comparison group. Option D is incorrect because the posttest-only control group design also involves measuring participants after a treatment or intervention, but with a separate control group for comparison.

Which of the Following Is Sometimes Called a "Before-After Design