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| A kettős vak, Szolimon-féle négycsoportos kísérleti terv× | Randomizált kontrollált vizsgálat (RCT)× | |
|---|---|---|
| Tudományterület | Kísérlettervezés | Kísérlettervezés |
| Módszercsalád≠ | Process / pipeline | Hypothesis test |
| Keletkezés éve≠ | 1949 (Solomon design); double-blind blinding integrated in 20th-century experimental practice | 1948 |
| Megalkotó≠ | Richard L. Solomon (base design); double-blind protocol is a general methodological standard | James Lind (early precursor, 1747); modern formulation: Austin Bradford Hill & Medical Research Council (1948) |
| Típus≠ | True experimental design | Interventional comparative study |
| Alapmű≠ | Solomon, 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 ↗ |
| Alternatív nevek | double-blind S4GD, blinded Solomon design, double-blind four-group design, Solomon four-group with double-blind | RCT, randomised controlled trial, clinical trial, Randomize Kontrollü Çalışma (RCT) Tasarımı |
| Kapcsolódó≠ | 5 | 7 |
| Összefoglaló≠ | The double-blind Solomon four-group design combines Richard Solomon's classic four-group structure — which isolates pretest sensitization effects — with double-blind blinding, ensuring that neither participants nor outcome assessors know group assignments. This combination yields high internal validity by controlling simultaneously for testing effects, expectancy bias, and experimenter influence, making it one of the most rigorous true experimental designs 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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