Ordestra Explainer
What Are Claim Levels?
In evidence-based communication, study design determines what you can claim. A randomised trial supports different language than an observational study. Getting this wrong is the most common error in scientific summaries — and the hardest to catch at speed.
| Study Design | Allowed Claim Language |
|---|---|
| Systematic review / meta-analysis | “The body of evidence suggests...”Synthesises multiple studies — strongest basis for population-level claims. |
| Randomised controlled trial (RCT) | “This study found that X caused Y...”Randomisation controls for confounders — supports causal language. |
| Quasi-experimental | “Results suggest X may contribute to Y...”Some control but no full randomisation — hedged causal language. |
| Observational / cohort | “X was associated with Y...”No intervention — correlation only, not causation. |
| Case report / series | “In this case, X was observed alongside Y...”Single or few cases — anecdotal, no generalisability. |
How Ordestra Applies This
Ordestra detects the study design from the source paper and automatically selects the appropriate claim template. This is deterministic — the AI cannot override it. If the paper is an observational study, the output will use association language regardless of what the abstract says.
The compliance badge on every output shows which claim level was applied and whether all finding sentences preserved the correct language boundary.
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