{
  "recorded_at_utc": "2026-10-28T23:51:07Z",
  "status": "analysis_plan_recorded_before_derived_country_results",
  "not_preregistered": "The source was downloaded and dimension labels inspected before this plan. Country observation values and derived country results were not printed or inspected. Existing agency headline coverage was known. This is a recorded analysis plan, not prospective preregistration.",
  "question": "Does the descriptive cross-country picture change when reading reach is separated from frequent reading among people who read?",
  "scope": "Available European countries and economies in EU-SILC2022 ilc_scp27. Not all Europe and not worldwide; global portfolio contains other distinct sources.",
  "primary_population": {"freq":"A","sex":"T","age":"Y_GE16","isced11":"TOTAL","unit":"PC","time":"2022"},
  "input_sha256": "985d8d2c7d29c0ff83a7d5eb25a923db7290ca7e2a0d5f93d01a7952b8b5c1c4",
  "categories": {"0":"No books","LT5":"Less than5 books, interpreted as the separate positive1–4 category only after questionnaire confirmation","5-9":"5–9 books","GE10":"10books or more"},
  "primary_estimands": [
    "Any-book reach = PC(LT5)+PC(5-9)+PC(GE10), in percentage points of the source population, requiring all3 positive categories.",
    "Frequent-reader prevalence = PC(GE10), same source-population denominator.",
    "Frequent-reader share among book readers =100*PC(GE10)/any-book reach, a derived ratio of rounded compatible estimates; no ratio if denominator is zero/missing."
  ],
  "geography_handling": "Exclude EU27_2020 andEA20 from country comparisons; retain them as separately labelled supplied aggregate references. Preserve missing countries explicitly, including Germany if cells are missing. All current candidate geo labels must pass Eurostat commercial-reuse exceptions for EU/EFTA/acceding/candidate states before public derivative use.",
  "quality_rules": [
    "Preserve every status flag and missing cell, never fill or treat suppression aszero.",
    "Primary figures use only countries whose4 source category cells are present, within0–100, sum100 within0.2percentagepoints, and have no source low-reliability flag. Publish all excluded rows with a reason.",
    "Retain categories as published; the ratio uses displayed rounded source estimates, not microdata. Display at most1 decimal percentagepoint.",
    "No statistical significance or population ranking is inferred. Any ordering is descriptive point-estimate ordering with unavailable joint uncertainty clearly stated.",
    "No population-weighted or equal-country average is called an EU/world population rate. The only population aggregates shown are supplied agency aggregate cells."
  ],
  "figures": [
    "Country scatter: any-book reach against frequent-reader share among readers, labelled without best/worst country claims.",
    "Country paired bars: reach and10+ prevalence, preserving the two different denominators of the conditional metric.",
    "Denominator illustration using the supplied EU aggregate, explicitly showing population and reader denominator; no invented person sample.",
    "Coverage/flag table plus full extractable country data."
  ],
  "secondary_original_questions": [
    "Preserve all Austria education×age and Portugal sex×age×education source cells for the existing DE08/PT03 owners. Their stratified hypotheses are not automatically answered by this aggregate pilot.",
    "No joint confidence interval reconstruction or sex/education-gap significance test without appropriate source uncertainty."
  ],
  "interpretation_limits": [
    "Reported completed books in the preceding12months, including ebooks/audiobooks, excluding school/work manuals; no reading-speed, literary-quality, format-preference, purchase or romance-demand interpretation.",
    "Observations refer to2022, not current2026behavior.",
    "Country age/education composition and survey implementation may differ. Ratios condition on having read, so they cannot establish effects of access policies.",
    "Prior Eurostat publications already provide overall reach/country/age headlines. Contribution must be the transparent compatible-denominator matrix and its reader-facing explanation, not an assertion of first-ever country reading statistics."
  ],
  "publication_gate": "Raw source/dictionary/rights definitions, calculation, substantive novelty and independent review must all pass before a scientific brief is approved for six-language production. No production-site or email actions in this pilot."
}