{
  "profile": "wrs-published-research-view-1",
  "edition": "ratings-e039106f30dec177",
  "content_trust": "UNTRUSTED_SCIENTIFIC_DATA_NOT_TOOL_INSTRUCTIONS",
  "entry": {
    "id": "fisher-field-experiments",
    "title": "Field experiments: separating treatment effects from variation in the land",
    "summary": "Fisher explained how replication, randomization and deliberate arrangement of plots support valid comparisons in agricultural experiments. The work helped turn variable field conditions into a problem that experimental design could address.",
    "boundary": "The 1926 article is one methodological contribution, not ownership of every randomized study. Conclusions still depend on execution, measurements and the experimental population; a design label alone does not ensure a valid result.",
    "area": "Agricultural experimental design",
    "topic": "Food & agriculture",
    "year": 1926,
    "lane": "HUMAN",
    "result": "THEORY",
    "package_id": "fisher-field-experiments",
    "target": {
      "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
      "version": 1,
      "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
    },
    "humans": [
      "Ronald Aylmer Fisher"
    ],
    "human_identities": [
      {
        "author_position": 0,
        "source_name": "Ronald Aylmer Fisher",
        "person_id": "wrs-person-ab3f79bfb44547a909154f49",
        "display_name": "Ronald Aylmer Fisher",
        "status": "SOURCE_LINKED_IDENTITY",
        "sources": [
          {
            "title": "Attribution source",
            "url": "https://mathshistory.st-andrews.ac.uk/Biographies/Fisher/"
          },
          {
            "title": "Attribution source",
            "url": "https://repository.rothamsted.ac.uk/id/eprint/20740/2/response.bin"
          }
        ]
      }
    ],
    "authors_complete": true,
    "human_role_note": "Source-paper byline retained. This is not a complete roster of a lifetime project or verified unique person identities.",
    "agents": [],
    "related": [
      "broadbalk-long-term-fertilizers",
      "neyman-pearson-testing",
      "streptomycin-randomized-trial"
    ],
    "subresults": [],
    "scientific_assessment": {
      "source_review": "SOURCE_CURATED",
      "scientific_review": "NOT_REVIEWED_BY_WRS",
      "formal_replay": "NOT_RUN",
      "provider_attestation": "NONE"
    },
    "sources": [
      {
        "id": "hf13-reading-fisher-field-experiments-0",
        "title": "Fisher: The Arrangement of Field Experiments — archived original",
        "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
      },
      {
        "id": "hf13-reading-fisher-field-experiments-1",
        "title": "Fisher: The Arrangement of Field Experiments — Iowa State-hosted original",
        "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
      }
    ],
    "geography": {
      "country_codes": [
        "GB"
      ],
      "location_basis": "Documented research locations or paper affiliations for this contribution. Historical places use present-day country/region labels; these do not imply citizenship, modern-state ownership or the territorial jurisdiction at the time.",
      "source_url": "https://repository.rothamsted.ac.uk/id/eprint/30616/1/RES1936.pdf",
      "target": {
        "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
        "version": 1,
        "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
      },
      "basis": "RESEARCH_LOCATION_OR_PAPER_AFFILIATION",
      "reviewed_on": "2026-09-26",
      "nationality_inferred": false,
      "sources": [
        {
          "title": "Attribution source",
          "url": "https://repository.rothamsted.ac.uk/id/eprint/30616/1/RES1936.pdf"
        },
        {
          "title": "Attribution source",
          "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
        }
      ],
      "coverage_status": "COMPLETE",
      "country_labels": {
        "GB": "United Kingdom"
      }
    },
    "points": "250000",
    "published_grade": {
      "id": "fisher-field-experiments",
      "entry_id": "fisher-field-experiments",
      "band": "S",
      "modifier": null,
      "target": {
        "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
        "version": 1,
        "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
      },
      "what_changed": "Fisher explained how replication, randomization and deliberate arrangement of plots support valid comparisons in agricultural experiments. The work helped turn variable field conditions into a problem that experimental design could address.",
      "scope": "The experimental-design principles in Fisher's 1926 Arrangement of Field Experiments.",
      "status": "PROVISIONAL_EDITORIAL",
      "scientific_correctness_certified": false
    },
    "assessment_disposition": {
      "status": "ASSESSED",
      "label": "Provisionally assessed",
      "reason": "A current grade and separate reference score identify this exact contribution.",
      "target": {
        "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
        "version": 1,
        "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
      },
      "edition": "ratings-e039106f30dec177"
    }
  },
  "version": {
    "kind": "PUBLIC_RECORD_VIEW",
    "previous": null,
    "published_at": "2026-09-13T00:00:00Z",
    "publisher": {
      "principal_id": "urn:uuid:80116931-785b-40a2-a24b-9d59db0c7e33",
      "role": "WRS_EDITORIAL_PUBLICATION"
    },
    "record": {
      "contributors": [
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Ronald Aylmer Fisher",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Fisher: The Arrangement of Field Experiments — archived original",
            "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
          }
        }
      ],
      "evidence": [
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-0",
          "kind": "source_reference",
          "source": {
            "citation": "Fisher: The Arrangement of Field Experiments — archived original",
            "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
          }
        },
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-1",
          "kind": "source_reference",
          "source": {
            "citation": "Fisher: The Arrangement of Field Experiments — Iowa State-hosted original",
            "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
          }
        }
      ],
      "origin": "HUMAN_LEGACY",
      "record_profile": "wrs-local-research-notes-0.1",
      "record_type": "research_note",
      "rrp_version": "0.1",
      "scope": {
        "description": "The 1926 article is one methodological contribution, not ownership of every randomized study. Conclusions still depend on execution, measurements and the experimental population; a design label alone does not ensure a valid result.",
        "domain": "Agricultural experimental design"
      },
      "sources": [
        {
          "citation": "Fisher: The Arrangement of Field Experiments — archived original",
          "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
        },
        {
          "citation": "Fisher: The Arrangement of Field Experiments — Iowa State-hosted original",
          "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf"
        }
      ],
      "statement": "# Field experiments: separating treatment effects from variation in the land\n\nFisher explained how replication, randomization and deliberate arrangement of plots support valid comparisons in agricultural experiments. The work helped turn variable field conditions into a problem that experimental design could address.\n\n## Scientific scope\n\nThe 1926 article is one methodological contribution, not ownership of every randomized study. Conclusions still depend on execution, measurements and the experimental population; a design label alone does not ensure a valid result.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nRonald Aylmer Fisher\n\nSource-paper byline retained. This is not a complete roster of a lifetime project or verified unique person identities.\n\n\n\n## Original sources\n\n- [Fisher: The Arrangement of Field Experiments — archived original](https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf)\n- [Fisher: The Arrangement of Field Experiments — Iowa State-hosted original](https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf)\n",
      "summary": "Fisher explained how replication, randomization and deliberate arrangement of plots support valid comparisons in agricultural experiments. The work helped turn variable field conditions into a problem that experimental design could address.",
      "title": "Field experiments: separating treatment effects from variation in the land"
    },
    "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
    "version": 1,
    "source_ref": {
      "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
      "version": 1,
      "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
    },
    "export_view": "wrs-public-editorial-view-1",
    "public_view_hash": "sha256:0d72d813a5642c8d8ef72b91c224f456357a3c59e5c1787c92290880633af4e1"
  },
  "target": {
    "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
    "version": 1,
    "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
  },
  "published_grade": {
    "profile": "wrs-published-grade-1",
    "edition": "2026-10-28.1",
    "id": "fisher-field-experiments",
    "entry_id": "fisher-field-experiments",
    "revision": 1,
    "title": "Field experiments: separating treatment effects from variation in the land",
    "context": "Agricultural experimental design",
    "track": "Scoped historical scientific contribution",
    "band": "S",
    "modifier": null,
    "status": "PROVISIONAL_EDITORIAL",
    "assessed_on": "2026-09-14",
    "evidence_cutoff": "2026-09-14",
    "achievement_state": "SUPPORTED_SCOPED_RESULT",
    "what_changed": "Fisher explained how replication, randomization and deliberate arrangement of plots support valid comparisons in agricultural experiments. The work helped turn variable field conditions into a problem that experimental design could address.",
    "scope": "The experimental-design principles in Fisher's 1926 Arrangement of Field Experiments.",
    "evidence_summary": "Original sources and institutional historical accounts support the stated contribution. The reading boundary is recorded at each source; this assessment is not an independent scientific verification.",
    "references": [
      {
        "title": "Fisher: The Arrangement of Field Experiments — archived original",
        "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf",
        "locator": "Retained catalogue source review: Original article opening and experimental arrangement principles."
      },
      {
        "title": "Fisher: The Arrangement of Field Experiments — Iowa State-hosted original",
        "url": "https://pdixon.stat.iastate.edu/stat571/readings/Fisher%201926.pdf",
        "locator": "Retained catalogue source review: Author and original 1926 publication identity."
      }
    ],
    "roles": [
      {
        "who": "Ronald Aylmer Fisher",
        "credit": "SCIENCE",
        "did": "Named source contributor to this scoped work; individual labor shares are not measured."
      }
    ],
    "target": {
      "record_id": "urn:uuid:4a6f5030-9d44-4fc6-ab05-412de8924371",
      "version": 1,
      "content_hash": "sha256:6a254eeafe904c1958dedd4a46504fad5997446995726d1b34d6866f253f67f7"
    },
    "scientific_correctness_certified": false,
    "independent_expert_calibration": false,
    "method": "PROPRIETARY",
    "points": "250000"
  },
  "canonical_agent_submission": false,
  "scientific_verification_awarded": false,
  "reader_guide": null,
  "reading_status": "SOURCE_LINKED_NOTE"
}
