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| التجربة العشوائية ذات العوامل المتعددة (Factorial Randomized Controlled Trial)× | التجربة المعشاة ذات الشواهد (RCT)× | |
|---|---|---|
| المجال | التصميم التجريبي | التصميم التجريبي |
| العائلة≠ | Process / pipeline | Hypothesis test |
| سنة النشأة≠ | 1926 (Fisher factorial foundations); 2000s–2010s (clinical factorial RCT formalization) | 1948 |
| صاحب الطريقة≠ | R. A. Fisher (factorial design foundations); adapted into clinical trials via MOST framework (Collins et al., 2014) | James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948) |
| النوع≠ | Experimental trial design | Interventional comparative study |
| المصدر التأسيسي≠ | Collins, L. M., Dziak, J. J., Kugler, K. C., & Trail, J. B. (2014). Factorial experiments: Efficient tools for evaluation of intervention components. American Journal of Preventive Medicine, 47(4), 498–504. 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 ↗ |
| الأسماء البديلة | Factorial RCT, factorial trial, multi-factor RCT, factorial experiment with randomization | RCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı |
| ذات صلة≠ | 6 | 7 |
| الملخص≠ | A factorial randomized controlled trial (factorial RCT) is an experimental design in which participants are randomly assigned to every possible combination of two or more independent factors (treatments or intervention components) simultaneously. This allows researchers to estimate the main effect of each factor and their interactions within a single, efficient trial, rather than running separate experiments for each factor. | 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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