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| Ein Einzelblind-Laborversuch× | Laboratoriumsexperiment× | |
|---|---|---|
| Fachgebiet | Versuchsplanung | Versuchsplanung |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | Late 19th century; codified in 20th-century clinical and behavioral research | 17th century (natural science); ~1879 onward (behavioral/social science) |
| Urheber≠ | Formalized in experimental psychology and pharmacology; Peirce & Jastrow (1884) early instance | 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) |
| Typ≠ | Controlled experimental design | Experimental quantitative design |
| Wegweisende Quelle | Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560 | Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560 |
| Aliasnamen≠ | single-masked laboratory study, participant-blind lab experiment, single-blind controlled lab study | lab experiment, controlled experiment, true experiment, lab study |
| Verwandt | 5 | 5 |
| Zusammenfassung≠ | A single-blind laboratory experiment is a controlled study conducted in a laboratory setting in which participants do not know which condition (e.g., treatment or control) they have been assigned to, while the researchers administering the conditions are aware. This masking of participants reduces demand characteristics and response bias without requiring full investigator blinding, and the controlled laboratory environment allows tight manipulation of independent variables and precise measurement of outcomes. | 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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