Individual skill

epsl-study-design

Use when designing the sampling, analytical, experimental, or modeling program for an Earth and Planetary Science Letters (EPSL) manuscript so the design can carry a process-level claim — sample context, reference materials, replication, blank control, and model resolution planned before data exist. It guides design decisions; it does not execute the campaign.

Earth-and-Planetary-Science-Letters-Skills/skills/epsl-study-design/SKILL.md

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# Study Design (epsl-study-design)

EPSL reviewers reverse-engineer the design from the claim: if the paper says "this rate constrains
mantle upwelling," they ask whether the samples, standards, and models could ever have shown
otherwise. The predictable failures are samples without context, analytical campaigns without
traceability to reference materials, models without resolution tests, and rates without an
independent time anchor. Design against them before the first analysis. Data reduction and
uncertainty reporting live in `epsl-data-analysis`.

## When to trigger

- Planning a sampling campaign, analytical session plan, experimental run matrix, or model suite
- Choosing reference materials, blanks, replicates, and session structure for isotope work
- Setting up resolution/sensitivity tests for an inversion or geodynamic model
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