{
  "summary": {
    "report_id": "PERIALETHEIA-CWIAL-2026-01",
    "measurand": "Belief displacement D for the proposition: 'Consuming approved GM food is dangerous to human health' (FALSE, Tier-1 verified: WHO/EFSA/NASEM)",
    "anchor_wave": "Eurobarometer 73.1 (2010), health-safety agreement item",
    "D": 0.59,
    "n": 31238,
    "design_effect": 1.8,
    "combined_standard_uncertainty_uc": 0.0544,
    "coverage_factor_k": 2,
    "expanded_uncertainty_U": 0.1088,
    "decision": "|D|/U = 5.42  (distinguishable from zero: yes)",
    "verdict_ratio": 5.42,
    "standards": [
      "VIM (JCGM 200:2012)",
      "GUM (JCGM 100:2008)",
      "ISO/IEC 17025:2017",
      "Currie 1968 / ISO 11843-1:1997"
    ],
    "units": "belief displacement units (proportion agreeing), range -1..+1",
    "status": "WORKING ANNEX - provisional Type B evaluation, under review; not the published on-page reading",
    "note": "The published Report No. 1 states the anchor reading (D=+0.59) with Type A only and declares the Type B budget as not yet finalised. This annex provides the working Type B evaluation for independent scrutiny."
  },
  "components": [
    {
      "component": "u_A",
      "source": "Sampling (design-adjusted)",
      "type": "A",
      "distribution": "-",
      "input": "p(1-p)/n, D_eff=1.8",
      "divisor": "-",
      "standard_uncertainty": 0.0037,
      "variance_share_pct": 0.47,
      "note": "Type A from reported n and design effect"
    },
    {
      "component": "u_B1",
      "source": "Response classification",
      "type": "B",
      "distribution": "-",
      "input": "classification risk <=0.01",
      "divisor": "1",
      "standard_uncertainty": 0.01,
      "variance_share_pct": 3.38,
      "note": "Bound on mapping respondents to belief classes"
    },
    {
      "component": "u_B2",
      "source": "Question-wording / instrument",
      "type": "B",
      "distribution": "Normal",
      "input": "half-width 0.10",
      "divisor": "1.96",
      "standard_uncertainty": 0.05,
      "variance_share_pct": 84.47,
      "note": "Dominant term: undocumented change of survey instrument"
    },
    {
      "component": "u_B3",
      "source": "Translation / cross-country",
      "type": "B",
      "distribution": "Rectangular",
      "input": "0.017",
      "divisor": "1.732",
      "standard_uncertainty": 0.0098,
      "variance_share_pct": 3.25,
      "note": "Semantic drift across language versions"
    },
    {
      "component": "u_B4",
      "source": "Temporal comparability",
      "type": "B",
      "distribution": "Rectangular",
      "input": "0.026",
      "divisor": "1.732",
      "standard_uncertainty": 0.015,
      "variance_share_pct": 7.61,
      "note": "Non-simultaneous fieldwork across waves"
    },
    {
      "component": "u_B5",
      "source": "Residual (e.g. coordinated campaign)",
      "type": "B",
      "distribution": "Triangular",
      "input": "0.012",
      "divisor": "2.449",
      "standard_uncertainty": 0.0049,
      "variance_share_pct": 0.81,
      "note": "Residual component incl. coordinated influence"
    }
  ]
}