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Desenho Bloqueado de Solomon de Quatro Grupos×Ensaio Clínico Randomizado (ECR)×
ÁreaDelineamento experimentalDelineamento experimental
FamíliaProcess / pipelineHypothesis test
Ano de origem1949 (base); blocking extension applied in behavioral and social sciences from mid-20th century onward1948
Autor originalRichard L. Solomon (base design, 1949); blocking integrated from classical experimental design tradition (Fisher, 1935)James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948)
TipoExperimental designInterventional comparative study
Fonte seminalSolomon, R. L. (1949). An extension of control group design. Psychological Bulletin, 46(2), 137–150. 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 ↗
Outros nomesBlocked S4G, randomized blocked Solomon design, Solomon four-group with blockingRCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı
Relacionados67
ResumoThe blocked Solomon four-group design combines Solomon's classic four-group structure — which disentangles pretest sensitization effects from treatment effects — with blocking on a known nuisance variable. Participants are first grouped into homogeneous blocks (e.g., by baseline ability, gender, or site), then randomly assigned within each block to one of four conditions: pretested treatment, pretested control, unpretested treatment, and unpretested control. This structure simultaneously controls for maturation, pretest reactivity, and block-level variance, making it one of the strongest quasi-controlled experimental frameworks available.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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ScholarGateComparar métodos: Blocked Solomon Four-Group Design · Randomized Controlled Trial. Recuperado em 2026-06-19 de https://scholargate.app/pt/compare