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| Jednostruko slijepi laboratorijski eksperiment× | Pretest-Posttest eksperimentalni nacrt× | |
|---|---|---|
| Područje | Eksperimentalni dizajn | Eksperimentalni dizajn |
| Obitelj | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | Late 19th century; codified in 20th-century clinical and behavioral research | 1963 (formalized in Campbell & Stanley) |
| Tvorac≠ | Formalized in experimental psychology and pharmacology; Peirce & Jastrow (1884) early instance | Donald T. Campbell and Julian C. Stanley |
| Vrsta≠ | Controlled experimental design | Experimental / quasi-experimental research design |
| Temeljni izvor≠ | Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560 | Campbell, D. T., & Stanley, J. C. (1963). Experimental and Quasi-Experimental Designs for Research. Rand McNally. link ↗ |
| Drugi nazivi≠ | single-masked laboratory study, participant-blind lab experiment, single-blind controlled lab study | pretest-posttest design, before-after design, pre-post design, two-wave experimental design |
| Srodne | 5 | 5 |
| Sažetak≠ | 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. | 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. |
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