So sánh phương pháp

	Thiết kế Thí nghiệm Nhóm Đối chứng	Thiết kế thực nghiệm đo lường trước và sau can thiệp
Lĩnh vực	Thiết kế thí nghiệm	Thiết kế thí nghiệm
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1935 (Fisher); 1963 (Campbell & Stanley codification)	1963 (formalized in Campbell & Stanley)
Người khởi xướng	Ronald A. Fisher; systematised by Donald T. Campbell & Julian C. Stanley	Donald T. Campbell and Julian C. Stanley
Loại	Experimental research design	Experimental / quasi-experimental research design
Công trình gốc	Campbell, D. T., & Stanley, J. C. (1963). Experimental and Quasi-Experimental Designs for Research. Rand McNally.	Campbell, D. T., & Stanley, J. C. (1963). Experimental and Quasi-Experimental Designs for Research. Rand McNally.
Tên gọi khác	controlled experiment, true experimental design, randomized controlled design, treatment-control design	pretest-posttest design, before-after design, pre-post design, two-wave experimental design
Liên quan	4	5
Tóm tắt	Control group experimental design is a fundamental experimental structure in which participants are assigned to at least two groups — a treatment group that receives the intervention and a control group that does not — so that the effect of the intervention can be isolated by comparing outcomes across groups. Randomisation of assignment strengthens causal inference by balancing known and unknown confounders.	The pretest-posttest experimental design measures participants on the outcome variable before and after treatment, typically with random assignment to treatment and control groups. The difference between pre- and post-scores isolates the treatment effect from baseline variation, making this one of the most widely used frameworks in experimental and quasi-experimental research across education, psychology, medicine, and the social sciences.