Randomized Controlled Trials
Clinical experiment design that assigns participants to treatment or control groups by chance to estimate intervention effects.
Core metadata
- ID: randomized_controlled_trials
- Era: Modern
- First known date: 1948 (exact)
- Region: United Kingdom and global clinical research
- Review status: source_checked
- Maturity: established
Prerequisites
- Experimental Controls (experimental_controls)
- Clinical Medicine (medicine_clinical)
- Probability & Statistical Inference (probability_statistics_inference)
Dependents
Fields
Field lanes
- Pharmaceuticals & Drug Development: Clinical Development & Regulation
Node sources
- Streptomycin Treatment of Pulmonary Tuberculosis (British Medical Journal, 1948, primary_paper) • Supports: node, maturity
- ClinicalTrials.gov Glossary (ClinicalTrials.gov, 2026, official_agency) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 3
- Average edge confidence: 78%
- Prerequisite sources: 3
- expert_inference: 1
- textbook: 2
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Experimental Controls (experimental_controls) | required | 88% | textbook | Randomized controlled trials are controlled experiments in clinical populations; random assignment is layered on top of experimental control. |
|
| Clinical Medicine (medicine_clinical) | enabling | 68% | expert_inference | Clinical Medicine provides a capability that enables this technology without being the only possible path. |
|
| Probability & Statistical Inference (probability_statistics_inference) | enabling | 78% | textbook | Statistical inference is needed to estimate treatment effects and uncertainty, but the clinical protocol is a separate technology. |
|
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