So sánh phương pháp

	Thiết kế Thử nghiệm Đối chứng 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	1990s (formal methodology development)	1926 (Fisher factorial foundations); 2000s–2010s (clinical factorial RCT formalization)
Người khởi xướng	Murray, D. M.; Donner, A. and Klar, N. (systematic formalization)	R. A. Fisher (factorial design foundations); adapted into clinical trials via MOST framework (Collins et al., 2014)
Loại	Experimental design	Experimental trial design
Công trình gốc	Donner, A., & Klar, N. (2000). Design and Analysis of Cluster Randomization Trials in Health Research. Arnold. ISBN: 978-0340691533	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.
Tên gọi khác	CRCT with control group, group-randomized trial, cluster RCT control group design, community randomized controlled trial	Factorial RCT, factorial trial, multi-factor RCT, factorial experiment with randomization
Liên quan	6	6
Tóm tắt	A cluster randomized control group experimental design randomly assigns intact groups (clusters) — such as schools, clinics, or communities — rather than individuals to treatment or control conditions. At least one cluster group receives no active intervention, serving as the control. This design is essential when individual randomization is impractical or contamination between participants in close proximity is likely.	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.