{
 "releve_le": "2026-10-09",
 "_licence": "CC BY 4.0 — calcul Stéphane Lalut ; sources OCDE (PISA, Regards sur l'éducation), DEPP, IEA",
 "meta": {
  "page": "https://stephane-lalut.com/le-niveau-des-eleves-baisse-t-il/",
  "licence": "CC BY 4.0",
  "champ": "France ; jeunes de 15 ans (PISA), élèves entrant en seconde (DEPP), terminale S (TIMSS Advanced), concours externes du second degré public",
  "source_calcul": "calcul de l'auteur (protocole écrit avant calcul) ; extrait figé scripts/sources_niveau_eleves/ (SHA256SUMS)"
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  "a1": "DEPEND DE LA MESURE",
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   "I1": 1,
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   "I1": true,
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   },
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     "2015": {
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     "2019": {
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     "1995": {
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    "TIMSS 4e sciences": {
     "2023": {
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     "2019": {
      "score": 489,
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     "1995": {
      "score": 488,
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     "score": 522.0,
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   "verdicts": {
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    "TIMSS 4e maths": "STABLE",
    "TIMSS CM1 sciences": "STABLE",
    "TIMSS 4e sciences": "STABLE",
    "PIRLS CM1": "STABLE"
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  "p5_lect_gt15": "556",
  "p5_lect_gt25": "495",
  "p5_lect_gtd": "61",
  "p5_lect_q_min": "37",
  "p5_lect_q_max": "46",
  "p6_math_rec": "36",
  "p6_lect_rec": "44",
  "p6_sci_rec": "13",
  "p6_dipl_nr15": "4",
  "p6_dipl_nr25": "13",
  "p6_orig_nr15": "3",
  "p6_orig_nr25": "8",
  "p6_math_med_min": "25",
  "p6_math_med_max": "38",
  "p6_lect_med_min": "20",
  "p6_lect_med_max": "53",
  "t3_n": "28",
  "t3_rang_l": "quatre",
  "t3_fr_dt": "4",
  "t3_fr_dp": "16",
  "t3_autre": "12",
  "tcm1_23": "484",
  "tcm1_19": "485",
  "tcm1_15": "488",
  "t4e_23": "479",
  "t4e_19": "483",
  "t4e_95": "530",
  "tcm1s_23": "488",
  "tcm1s_19": "488",
  "tcm1s_15": "487",
  "t4es_23": "486",
  "t4es_19": "489",
  "t4es_95": "488",
  "pirls_01": "525",
  "pirls_06": "522",
  "pirls_11": "520",
  "pirls_16": "511",
  "pirls_21": "514",
  "comp_retard15": "24",
  "comp_retard25": "10",
  "comp_pro15": "14",
  "comp_pro25": "23",
  "comp_prem25": "3",
  "p7_lect_i1_15": "104",
  "p7_lect_i1_25": "83",
  "lect_p50": "49",
  "lect_op50": "29",
  "lect_p10": "29",
  "lect_p90": "47",
  "lect_op10": "35",
  "lect_op90": "17",
  "math_p50": "40",
  "math_op50": "24",
  "math_p10": "30",
  "math_p90": "33",
  "math_op10": "28",
  "math_op90": "13",
  "sci_p50": "12",
  "sci_op50": "7",
  "sci_p10": "13",
  "sci_p90": "9",
  "sci_op10": "14",
  "sci_op90": "0",
  "eff_22": "7,04",
  "eff_25": "6,43",
  "eff_d": "0,61",
  "eff_od": "0,31",
  "eff_n": "38"
 }
}