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| Fraktioneret Faktoriel Eksperiment× | Randomiseret Kontrolleret Forsøg (RCT)× | |
|---|---|---|
| Fagområde | Forsøgsdesign | Forsøgsdesign |
| Familie≠ | Process / pipeline | Hypothesis test |
| Oprindelsesår≠ | 1945 (Finney); broader development 1950s–1970s by Box, Hunter | 1948 |
| Ophavsperson≠ | D. J. Finney (formal development); foundations in Ronald Fisher's factorial design work | James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948) |
| Type≠ | Quantitative experimental design | Interventional comparative study |
| Oprindelig kilde≠ | Box, G. E. P., Hunter, J. S., & Hunter, W. G. (2005). Statistics for Experimenters: Design, Innovation, and Discovery (2nd ed.). Wiley-Interscience. ISBN: 978-0471718130 | 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 ↗ |
| Aliasser | fractional factorial design, FFD, 2^(k-p) design, fractional replication | RCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı |
| Relaterede≠ | 4 | 7 |
| Resumé≠ | A fractional factorial experiment is a resource-efficient experimental design that tests only a carefully chosen fraction of all possible factor-level combinations. By exploiting the principle that high-order interactions are usually negligible, it identifies the main effects and low-order interactions of k factors using far fewer runs than a full factorial design — making it the workhorse of industrial and engineering screening experiments. | 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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