{
 "releve_le": "2026-10-09",
 "_licence": "CC BY 4.0 — calcul Stéphane Lalut ; sources DEPP, OCDE (PISA), IEA (PIRLS), ministère de la Culture, CREDOC",
 "meta": {
  "page": "https://stephane-lalut.com/les-eleves-maitrisent-ils-moins-bien-la-langue-francaise/",
  "licence": "CC BY 4.0",
  "champ": "France ; élèves de CM1, CM2, sixième, troisième, seconde ; jeunes de 15 ans (PISA) ; 15-24 ans (enquêtes Pratiques culturelles)",
  "source_calcul": "calcul de l'auteur (protocole écrit avant calcul) ; extrait figé scripts/sources_langue_eleves/ (SHA256SUMS)"
 },
 "protocole": "ddab2bc",
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   "2015": 18.0,
   "2021": 19.4
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   "2015": 9.9,
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  "lexicales": {
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   "2015": 3.0,
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  "deux_erreurs_ou_moins": {
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  "vingt_cinq_ou_plus": {
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 "dictee_types_1987_2007": {
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  "grammaticales": {
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  "ponctuation": {
   "1987": 1.1,
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 "lecture_cm2": {
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 "cedre_ecole": {
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 "cedre_college_textes": {
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 "cedre_college": {
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   "Groupe d'IPS 1": {
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 "culture": {
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 "smartphone_12_17": {
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 "smartphone_12_17_texte_2015": 87.0,
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    "b_verdict": "NON ETABLI",
    "c_verdict": "indetermine",
    "c_bornes": {
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     "haute": "indetermine",
     "basse": "indetermine"
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 },
 "textes_offerts": {
  "releve_le": "2026-10-10",
  "emmanuelle": {
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   "taoki": {
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 "affichage": {
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  "lex87": "2,1",
  "aut87": "8,6",
  "tot07": "14,7",
  "lex07": "2,6",
  "aut07": "12,1",
  "tot15": "18",
  "lex15": "3",
  "aut15": "15",
  "tot21": "19,4",
  "lex21": "3",
  "aut21": "16,4",
  "et87": "8,4",
  "et21": "11,0",
  "cv87": "0,79",
  "cv21": "0,57",
  "peu87": "12,9",
  "peu21": "1,9",
  "bcp87": "6,9",
  "bcp21": "27,5",
  "lcm2_07": "0,37",
  "smart_seuil": "2013",
  "smart11": "22",
  "smart13": "55",
  "pisa00": "505",
  "pisa12": "505",
  "pisa18": "493",
  "pisa22": "474",
  "pisa25": "456",
  "pisa_v12": "49",
  "pirls01": "525",
  "pirls11": "520",
  "pirls16": "511",
  "pirls21": "514",
  "ce03": "250",
  "ce15": "251",
  "ce21": "254",
  "cc15": "250",
  "cc21": "247",
  "ccep15": "233",
  "ccep21": "225",
  "ccg15": "247",
  "ccg21": "241",
  "ccec15": "17",
  "ccec21": "22",
  "gram87": "7,1",
  "gram07": "10,8",
  "h_tot": "8,7",
  "h_lex": "0,9",
  "h_tot0707": "4,0",
  "h_gram0707": "3,7",
  "six17": "250",
  "six21": "261",
  "six25": "256",
  "sec19": "263",
  "sec21": "272",
  "sec25": "263",
  "lex_sat": "44,2",
  "lex_ips1": "26,4",
  "lex_ips5": "61,5",
  "h00": "3,8",
  "h09": "3,3",
  "h18": "3,5",
  "obl09": "34",
  "obl18": "43",
  "np6": "12",
  "np4": "28",
  "np2gt": "32",
  "np2pro": "49",
  "npcap": "47",
  "cul88": "25",
  "cul08": "16",
  "e3h22": "32",
  "e3h25": "26",
  "w3h22": "61",
  "w3h25": "54",
  "nr22": "12",
  "nr25": "23",
  "nrs25": "381",
  "reps25": "480",
  "d35": "21",
  "d5p": "21",
  "emma_ndisc": "8",
  "emma_notices": "27 595",
  "dv_cat": "16",
  "dv_r1": "0",
  "rc_cat": "9",
  "rc_r1": "0",
  "taoki_cat": "13",
  "taoki_r1": "4",
  "n_d05": "63",
  "n_d1": "16",
  "tx_date": "10 octobre 2026"
 }
}