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| Thử nghiệm giai thừa phân đoạn ngẫu nhiên theo cụm× | Phép thử kiểm soát ngẫu nhiên theo thừa số× | |
|---|---|---|
| Lĩnh vực | Thiết kế thí nghiệm | Thiết kế thí nghiệm |
| Họ | Process / pipeline | Process / pipeline |
| Năm ra đời≠ | 1950s (fractional factorial); 1980s-1990s (cluster-randomized extensions) | 1926 (Fisher factorial foundations); 2000s–2010s (clinical factorial RCT formalization) |
| Người khởi xướng≠ | Box, Hunter & Hunter (fractional factorial foundations); Murray & colleagues (group-randomized trial methodology) | R. A. Fisher (factorial design foundations); adapted into clinical trials via MOST framework (Collins et al., 2014) |
| Loại≠ | Experimental design (compound) | Experimental trial design |
| Công trình gốc≠ | Box, G. E. P., Hunter, J. S., & Hunter, W. G. (2005). Statistics for Experimenters: Design, Innovation, and Discovery (2nd ed.). Wiley. ISBN: 978-0471718130 | 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 ↗ |
| Tên gọi khác | CR-FFE, cluster-randomized fractional factorial design, group-randomized fractional factorial trial, CRFFD | Factorial RCT, factorial trial, multi-factor RCT, factorial experiment with randomization |
| Liên quan≠ | 5 | 6 |
| Tóm tắt≠ | A cluster-randomized fractional factorial experiment combines two design principles: randomization is applied to intact groups (clusters such as schools, clinics, or communities) rather than individuals, and only a carefully chosen fraction of all possible factor-level combinations is tested. This pairing makes it practical to screen or evaluate multiple intervention components simultaneously in settings where individual randomization is infeasible, while keeping the number of required clusters manageable. | 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. |
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