方法对比
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| 受阻实验室实验× | 实验室实验× | |
|---|---|---|
| 领域 | 实验设计 | 实验设计 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1926–1935 | 17th century (natural science); ~1879 onward (behavioral/social science) |
| 提出者≠ | Ronald A. Fisher | Francis Bacon, Robert Boyle (early scientific method); formalized in social science by Wilhelm Wundt (1879 psychology lab) and Ronald A. Fisher (20th-century design principles) |
| 类型≠ | Controlled experimental design with blocking | Experimental quantitative design |
| 开创性文献≠ | Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd. link ↗ | Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560 |
| 别名 | blocked lab experiment, laboratory randomized block design, RBD laboratory study, blocked within-lab experiment | lab experiment, controlled experiment, true experiment, lab study |
| 相关 | 5 | 5 |
| 摘要≠ | A blocked laboratory experiment is a controlled laboratory study in which experimental units are grouped into homogeneous blocks before treatment assignment, and treatments are then randomly assigned within each block. Blocking removes the influence of a known nuisance variable — such as participant batch, equipment run, or testing day — from the error term, increasing the precision of treatment comparisons without expanding sample size. | A laboratory experiment is a research design in which the investigator systematically manipulates one or more independent variables under tightly controlled conditions, randomly assigns participants to conditions, and measures the effect on dependent variables. By maximizing internal control, the laboratory experiment is the gold standard for establishing cause-and-effect relationships. It is the backbone of experimental psychology, cognitive science, pharmacology, and many social sciences. |
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