{
  "studies": [
    {
      "hash": "e2735cc76fe4721a144852354f5ed329fc840f633637be0bac03f3f4175e3a56",
      "prior_look": "Demonstration study. The author computed this comparison on the full dataset before writing the plan, so the verdict shows how the pipeline works and is not independent evidence.",
      "required_n_per_group": 124,
      "sealed": true,
      "sealed_at": "2026-10-16T09:01:37.719Z",
      "sealed_hash": "e2735cc76fe4721a144852354f5ed329fc840f633637be0bac03f3f4175e3a56",
      "study": "0001-penguin-flipper-sex",
      "title": "Are male penguins' flippers longer than female penguins'?"
    },
    {
      "hash": "da505aedabbe350e343f2d28a2b99dc9d21a8cfdeadee08187d8f5143f158b8a",
      "prior_look": "Demonstration study. The author computed this comparison on the full dataset before writing the plan, so the verdict shows how the pipeline works and is not independent evidence.",
      "required_n_per_group": 51,
      "sealed": true,
      "sealed_at": "2026-10-16T09:01:38.954Z",
      "sealed_hash": "da505aedabbe350e343f2d28a2b99dc9d21a8cfdeadee08187d8f5143f158b8a",
      "study": "0002-adelie-bill-island",
      "title": "Do Adelie penguins on Dream and Torgersen islands differ in bill length?"
    },
    {
      "hash": "aed1cc95f0a02aa9ae53dfef2bfa8f325c70c80de380dc30a449322872fb6d08",
      "prior_look": "Demonstration study. The author computed this comparison on the full dataset before writing the plan, so the verdict shows how the pipeline works and is not independent evidence.",
      "required_n_per_group": 393,
      "sealed": true,
      "sealed_at": "2026-10-16T09:01:40.381Z",
      "sealed_hash": "aed1cc95f0a02aa9ae53dfef2bfa8f325c70c80de380dc30a449322872fb6d08",
      "study": "0003-gentoo-mass-year",
      "title": "Were Gentoo penguins heavier in 2009 than in 2007?"
    },
    {
      "hash": "52ebf9785e1ca1e61be2863b104d12002e4645fa9b778e9aae26c79e30adf58a",
      "prior_look": "The issue author has seen summary plots of flipper length by species in tutorials, so the direction of the difference is not a secret. The author has not computed this comparison or seen its numbers. The plan author did not open the data.",
      "required_n_per_group": 31,
      "sealed": true,
      "sealed_at": "2026-10-16T09:23:52.826Z",
      "sealed_hash": "52ebf9785e1ca1e61be2863b104d12002e4645fa9b778e9aae26c79e30adf58a",
      "study": "0004-chinstrap-adelie-flipper",
      "title": "Do Chinstrap penguins have longer flippers than Adelie penguins?"
    }
  ],
  "verdicts": {
    "0001-penguin-flipper-sex": {
      "alpha": 0.05,
      "ci": [
        4.447949134199134,
        10.098181818181802
      ],
      "data_rows": 344,
      "data_sha256": "f204db2c753b0937caac3cb35258562c14f073e4bbc76be24b4c51ce22767a93",
      "effect": 7.142316017316006,
      "hash": "e2735cc76fe4721a144852354f5ed329fc840f633637be0bac03f3f4175e3a56",
      "issue": null,
      "label": "Evidence of an effect (pre-registered test)",
      "method": "welch_normal",
      "n_control": 165,
      "n_treatment": 168,
      "p_value": 1.5255013083859126e-06,
      "prior_look": "Demonstration study. The author computed this comparison on the full dataset before writing the plan, so the verdict shows how the pipeline works and is not independent evidence.",
      "required_n_per_group": 124,
      "run_commit": "4cdc8c9f381b690f41ca36d814f59d53cde8f387",
      "seal_commit": "4cdc8c9f381b690f41ca36d814f59d53cde8f387",
      "sealed_at": "2026-10-16T09:01:37.719Z",
      "sealed_hash": "e2735cc76fe4721a144852354f5ed329fc840f633637be0bac03f3f4175e3a56",
      "study": "0001-penguin-flipper-sex",
      "title": "Are male penguins' flippers longer than female penguins'?",
      "verdict": "evidence"
    },
    "0002-adelie-bill-island": {
      "alpha": 0.05,
      "ci": [
        -1.4733972338935593,
        0.594047619047617
      ],
      "data_rows": 344,
      "data_sha256": "f204db2c753b0937caac3cb35258562c14f073e4bbc76be24b4c51ce22767a93",
      "effect": -0.449194677871148,
      "hash": "da505aedabbe350e343f2d28a2b99dc9d21a8cfdeadee08187d8f5143f158b8a",
      "issue": null,
      "label": "No evidence of an effect at the planned sample size",
      "method": "welch_normal",
      "n_control": 51,
      "n_treatment": 56,
      "p_value": 0.402576470796711,
      "prior_look": "Demonstration study. The author computed this comparison on the full dataset before writing the plan, so the verdict shows how the pipeline works and is not independent evidence.",
      "required_n_per_group": 51,
      "run_commit": "4cdc8c9f381b690f41ca36d814f59d53cde8f387",
      "seal_commit": "4cdc8c9f381b690f41ca36d814f59d53cde8f387",
      "sealed_at": "2026-10-16T09:01:38.954Z",
      "sealed_hash": "da505aedabbe350e343f2d28a2b99dc9d21a8cfdeadee08187d8f5143f158b8a",
      "study": "0002-adelie-bill-island",
      "title": "Do Adelie penguins on Dream and Torgersen islands differ in bill length?",
      "verdict": "no_evidence"
    },
    "0003-gentoo-mass-year": {
      "alpha": 0.05,
      "ci": [
        -164.09114227086243,
        306.1294459644316
      ],
      "data_rows": 344,
      "data_sha256": "f204db2c753b0937caac3cb35258562c14f073e4bbc76be24b4c51ce22767a93",
      "effect": 70.10943912448693,
      "hash": "aed1cc95f0a02aa9ae53dfef2bfa8f325c70c80de380dc30a449322872fb6d08",
      "issue": null,
      "label": "Inconclusive: the sample is smaller than the plan requires",
      "method": "welch_normal",
      "n_control": 34,
      "n_treatment": 43,
      "p_value": 0.5558257990430675,
      "prior_look": "Demonstration study. The author computed this comparison on the full dataset before writing the plan, so the verdict shows how the pipeline works and is not independent evidence.",
      "required_n_per_group": 393,
      "run_commit": "4cdc8c9f381b690f41ca36d814f59d53cde8f387",
      "seal_commit": "4cdc8c9f381b690f41ca36d814f59d53cde8f387",
      "sealed_at": "2026-10-16T09:01:40.381Z",
      "sealed_hash": "aed1cc95f0a02aa9ae53dfef2bfa8f325c70c80de380dc30a449322872fb6d08",
      "study": "0003-gentoo-mass-year",
      "title": "Were Gentoo penguins heavier in 2009 than in 2007?",
      "verdict": "inconclusive"
    },
    "0004-chinstrap-adelie-flipper": {
      "alpha": 0.05,
      "ci": [
        3.875452863264527,
        7.930665660303874
      ],
      "data_rows": 344,
      "data_sha256": "f204db2c753b0937caac3cb35258562c14f073e4bbc76be24b4c51ce22767a93",
      "effect": 5.869887027658734,
      "hash": "52ebf9785e1ca1e61be2863b104d12002e4645fa9b778e9aae26c79e30adf58a",
      "issue": 2,
      "label": "Evidence of an effect (pre-registered test)",
      "method": "welch_normal",
      "n_control": 151,
      "n_treatment": 68,
      "p_value": 7.45300532400961e-09,
      "prior_look": "The issue author has seen summary plots of flipper length by species in tutorials, so the direction of the difference is not a secret. The author has not computed this comparison or seen its numbers. The plan author did not open the data.",
      "required_n_per_group": 31,
      "run_commit": "9989b8cddb585b8a6c1f20af2b8e6ee34fdd3fda",
      "seal_commit": "9989b8cddb585b8a6c1f20af2b8e6ee34fdd3fda",
      "sealed_at": "2026-10-16T09:23:52.826Z",
      "sealed_hash": "52ebf9785e1ca1e61be2863b104d12002e4645fa9b778e9aae26c79e30adf58a",
      "study": "0004-chinstrap-adelie-flipper",
      "title": "Do Chinstrap penguins have longer flippers than Adelie penguins?",
      "verdict": "evidence"
    }
  }
}