Vertaile menetelmiä
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| Monikäsivälineinen koe× | Satunnaistettu kontrolloitu tutkimus (RCT)× | |
|---|---|---|
| Tieteenala | Koesuunnittelu | Koesuunnittelu |
| Menetelmäperhe≠ | Process / pipeline | Hypothesis test |
| Syntyvuosi≠ | 1990s–2000s (clinical formalization); multi-arm concept implicit in ANOVA-era factorial designs | 1948 |
| Kehittäjä≠ | Developed within clinical trials methodology; formalized by Parmar, Royston and colleagues (UK MRC CTU, early 2000s) | James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948) |
| Tyyppi≠ | Experimental design | Interventional comparative study |
| Alkuperäislähde≠ | Royston, P., Parmar, M. K. B., & Qian, W. (2003). Novel designs for multi-arm clinical trials with survival outcomes with an application in ovarian cancer. Statistics in Medicine, 22(14), 2239–2256. DOI ↗ | Schulz, K.F., Altman, D.G., Moher, D., for the CONSORT Group (2010). CONSORT 2010 Statement: Updated Guidelines for Reporting Parallel Group Randomised Trials. BMJ, 340, c332. DOI ↗ |
| Rinnakkaisnimet | multi-arm trial, multiple-arm experiment, multi-group experiment, many-arm design | RCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı |
| Liittyvät≠ | 5 | 7 |
| Tiivistelmä≠ | A multi-arm experiment simultaneously compares three or more treatment or intervention conditions — each called an arm — against a shared control or against one another. By testing multiple alternatives in a single study, it yields more information per participant than running separate two-group experiments sequentially, while controlling the overall Type I error rate through pre-specified comparison strategies. | A randomized controlled trial (RCT) is the gold standard experimental design in clinical and health research, in which participants are randomly allocated to a treatment group or a control group so that the effect of an intervention can be measured with the highest possible degree of internal validity. The modern parallel-group RCT was formalized by Austin Bradford Hill and the Medical Research Council in their landmark streptomycin trial of 1948, and its reporting is governed today by the CONSORT 2010 guidelines (Schulz et al., 2010). |
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