{
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  "means": {
    "category": 86,
    "global": 85,
    "deltaVsGlobal": 1
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  "leader": {
    "slug": "ourworldindata",
    "name": "Our World in Data",
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    "canonical": "https://sourcescore.org/source/ourworldindata/",
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      "slug": "ourworldindata",
      "name": "Our World in Data",
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      "name": "Pew Research Center",
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        "grade": "A",
        "rationale": "Methodology + sample-size + raw data published per study; peer-reviewed style; corrections public."
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      "deltaVsCategoryMean": 6
    },
    {
      "rank": 3,
      "slug": "kff",
      "name": "KFF (Kaiser Family Foundation)",
      "domain": "kff.org",
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      "dimensionDetail": "https://sourcescore.org/discipline/kff/",
      "api": "https://sourcescore.org/api/source/kff.json",
      "score": {
        "value": 90,
        "grade": "A",
        "rationale": "Methodology + raw data published; survey + polling discipline; corrections public."
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      "deltaVsCategoryMean": 4
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    {
      "rank": 4,
      "slug": "rand-corp",
      "name": "RAND Corporation",
      "domain": "rand.org",
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        "value": 90,
        "grade": "A",
        "rationale": "Peer-reviewed publications + methodology disclosed + corrections public."
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      "deltaVsCategoryMean": 4
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      "rank": 5,
      "slug": "brookings",
      "name": "Brookings Institution",
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      "dimensionDetail": "https://sourcescore.org/discipline/brookings/",
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      "score": {
        "value": 88,
        "grade": "A",
        "rationale": "Named-author scholarship + peer-reviewed publications + methodology disclosed."
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      "deltaVsCategoryMean": 2
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    {
      "rank": 6,
      "slug": "cfr",
      "name": "Council on Foreign Relations",
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        "rationale": "Named-fellow scholarship + editorial review; established think-tank standards."
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      "name": "BBC Research & Development",
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      "dimensionDetail": "https://sourcescore.org/discipline/bbc-research/",
      "api": "https://sourcescore.org/api/source/bbc-research.json",
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        "value": 84,
        "grade": "B",
        "rationale": "BBC editorial + technical-research practices; methodology disclosed."
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      "deltaVsCategoryMean": -2
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      "rank": 8,
      "slug": "zillow-research",
      "name": "Zillow Research",
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      "dimensionDetail": "https://sourcescore.org/discipline/zillow-research/",
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        "value": 80,
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        "rationale": "Methodology + sample documented; primary data from Zillow's own listings + transactions."
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      "deltaVsCategoryMean": -6
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    {
      "rank": 9,
      "slug": "statista",
      "name": "Statista",
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        "value": 70,
        "grade": "B",
        "rationale": "Methodology disclosed per chart; primary sources cited; quality varies on aggregated content."
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      "deltaVsCategoryMean": -16
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      "pathSegment": "modern-reference",
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}