{"ok":true,"dataScope":"aggregated","generatedAt":1791378805985,"totalEvents":445633,"totalUsers":4256,"abilityGroupLearners":2248,"aggregationScope":"all_clean_events","totalUsersScope":"learner_identifiers_with_at_least_one_grade_a_event","methodologyVersion":"1.1","canonicalDatasetUrl":"https://www.nihongotojapan.com/research/japanese-learning-data-2026","warning":"Live endpoint — figures change on every call and use a different analysis set (all answer events) from the citable frozen dataset. For citation use the versioned frozen dataset at canonicalDatasetUrl.","byAxis":{"allround":{"exposure":27,"correctRate":0.8888888888888888},"idiom":{"exposure":5917,"correctRate":0.867669427074531},"particle":{"exposure":12736,"correctRate":0.7142744974874372},"pattern":{"exposure":193447,"correctRate":0.760042802421335},"reading":{"exposure":967,"correctRate":0.7766287487073423},"vocab":{"exposure":216330,"correctRate":0.9022789257153423},"wordform":{"exposure":16209,"correctRate":0.7561231414646185}},"byJlpt":{"N1":{"exposure":22673,"correctRate":0.7871477087284435},"N2":{"exposure":27119,"correctRate":0.7501751539511043},"N3":{"exposure":66782,"correctRate":0.7571800784642568},"N4":{"exposure":75797,"correctRate":0.7981582384527092},"N5":{"exposure":253262,"correctRate":0.8695540586428284}},"byKnowledgePoint":{"kp_vocab_bucket_N5":{"exposure":35151,"correctRate":0.9308696765383631},"kp_pattern_bucket_N5":{"exposure":26225,"correctRate":0.8092278360343184},"kp_pattern_bucket_N4":{"exposure":10471,"correctRate":0.7541782064750263},"kp_pattern_bucket_N3":{"exposure":9008,"correctRate":0.6659635879218473},"kp_pattern_t_の":{"exposure":5014,"correctRate":0.8406461906661348},"kp_vocab_bucket_N4":{"exposure":4933,"correctRate":0.8777620109466856},"kp_vocab_bucket_N3":{"exposure":4900,"correctRate":0.856326530612245},"kp_pattern_bucket_N2":{"exposure":3388,"correctRate":0.685064935064935},"kp_pattern_bucket_N1":{"exposure":3058,"correctRate":0.6798561151079137},"kp_particle_other":{"exposure":3043,"correctRate":0.7676634899769964},"kp_pattern_t_に":{"exposure":2932,"correctRate":0.6998635743519782},"kp_pattern_て":{"exposure":2852,"correctRate":0.6654978962131838},"kp_conj_te":{"exposure":2663,"correctRate":0.7420202778820879},"kp_conj_nai":{"exposure":2406,"correctRate":0.7601828761429759},"kp_conj_ta":{"exposure":2340,"correctRate":0.7098290598290599},"kp_wordform_bucket_N3":{"exposure":2321,"correctRate":0.7354588539422663},"kp_pattern_こと":{"exposure":2160,"correctRate":0.8425925925925926},"kp_vocab_bucket_N2":{"exposure":2108,"correctRate":0.8657495256166983},"kp_particle_が":{"exposure":2098,"correctRate":0.6272640610104862},"kp_conj_masu":{"exposure":1938,"correctRate":0.8441692466460269},"kp_particle_に":{"exposure":1833,"correctRate":0.6541189307146754},"kp_pattern_t_あります":{"exposure":1703,"correctRate":0.8995889606576629},"kp_particle_で":{"exposure":1650,"correctRate":0.6375757575757576},"kp_pattern_t_ない":{"exposure":1633,"correctRate":0.6956521739130435},"kp_particle_を":{"exposure":1630,"correctRate":0.8049079754601227},"kp_conj_potential":{"exposure":1611,"correctRate":0.6567349472377405},"kp_pattern_t_は":{"exposure":1592,"correctRate":0.8492462311557789},"kp_pattern_t_ません":{"exposure":1582,"correctRate":0.7914032869785083},"kp_pattern_t_で":{"exposure":1548,"correctRate":0.5755813953488372},"kp_pattern_t_と":{"exposure":1525,"correctRate":0.7842622950819672},"kp_pattern_t_を":{"exposure":1472,"correctRate":0.7588315217391305},"kp_pattern_t_ください":{"exposure":1376,"correctRate":0.9367732558139535},"kp_pattern_よう":{"exposure":1293,"correctRate":0.8460943542150039},"kp_pattern_t_います":{"exposure":1267,"correctRate":0.9076558800315706},"kp_pattern_t_から":{"exposure":1266,"correctRate":0.7701421800947867},"kp_vocab_bucket_N1":{"exposure":1254,"correctRate":0.89792663476874},"kp_pattern_t_が":{"exposure":1229,"correctRate":0.6248982912937348},"kp_idiom_bucket_N1":{"exposure":1156,"correctRate":0.893598615916955},"kp_wordform_bucket_N5":{"exposure":1070,"correctRate":0.72803738317757},"kp_wordform_bucket_N4":{"exposure":1062,"correctRate":0.8531073446327684},"kp_pattern_ても":{"exposure":1058,"correctRate":0.6758034026465028},"kp_pattern_t_ので":{"exposure":1008,"correctRate":0.7033730158730159},"kp_pattern_t_より":{"exposure":987,"correctRate":0.8824721377912867},"kp_pattern_t_ましょう":{"exposure":889,"correctRate":0.8605174353205849},"kp_pattern_t_いいです":{"exposure":861,"correctRate":0.9210220673635308},"kp_pattern_たら":{"exposure":855,"correctRate":0.6444444444444445},"kp_pattern_t_ば":{"exposure":831,"correctRate":0.6871239470517448},"kp_pattern_なければなりません":{"exposure":830,"correctRate":0.9337349397590361},"kp_pattern_まま":{"exposure":821,"correctRate":0.928136419001218},"kp_pattern_ながら":{"exposure":806,"correctRate":0.5831265508684863},"kp_pattern_t_前に":{"exposure":750,"correctRate":0.964},"kp_pattern_t_です":{"exposure":741,"correctRate":0.9136302294197031},"kp_pattern_に対して":{"exposure":702,"correctRate":0.8760683760683761},"kp_pattern_t_なら":{"exposure":652,"correctRate":0.6457055214723927},"kp_pattern_t_なくてもいいです":{"exposure":636,"correctRate":0.8364779874213837},"kp_pattern_そう":{"exposure":626,"correctRate":0.8115015974440895},"kp_pattern_てから":{"exposure":625,"correctRate":0.6048},"kp_pattern_t_たり":{"exposure":622,"correctRate":0.9147909967845659},"kp_pattern_ように":{"exposure":609,"correctRate":0.5303776683087028},"kp_pattern_わけ":{"exposure":589,"correctRate":0.6757215619694398},"kp_pattern_t_み":{"exposure":586,"correctRate":0.9965870307167235},"kp_pattern_t_のに":{"exposure":570,"correctRate":0.6035087719298246},"kp_pattern_t_だから":{"exposure":558,"correctRate":0.7670250896057348},"kp_pattern_t_じゃない":{"exposure":544,"correctRate":0.8658088235294118},"kp_pattern_t_ほど":{"exposure":542,"correctRate":0.8247232472324724},"kp_pattern_t_わたしは学生です。":{"exposure":520,"correctRate":0.9538461538461539},"kp_pattern_t_ではありません":{"exposure":514,"correctRate":0.8268482490272373},"kp_particle_と":{"exposure":510,"correctRate":0.7431372549019608},"kp_pattern_らしい":{"exposure":510,"correctRate":0.4843137254901961},"kp_pattern_t_ほしい":{"exposure":501,"correctRate":0.8862275449101796},"kp_idiom_bucket_N3":{"exposure":498,"correctRate":0.8554216867469879},"kp_pattern_t_でも":{"exposure":495,"correctRate":0.8282828282828283},"kp_pattern_t_ね":{"exposure":495,"correctRate":0.8262626262626263},"kp_pattern_すぎ":{"exposure":484,"correctRate":0.7892561983471075},"kp_pattern_t_東京":{"exposure":470,"correctRate":0.9659574468085106},"kp_pattern_t_会社員":{"exposure":465,"correctRate":0.9505376344086022},"kp_particle_の":{"exposure":462,"correctRate":0.8528138528138528},"kp_pattern_t_これは本です。":{"exposure":458,"correctRate":0.868995633187773},"kp_pattern_t_いけません":{"exposure":448,"correctRate":0.9620535714285714},"kp_pattern_t_でしょう":{"exposure":440,"correctRate":0.8795454545454545},"kp_pattern_によって":{"exposure":439,"correctRate":0.7630979498861048},"kp_pattern_t_なければ":{"exposure":437,"correctRate":0.6247139588100686},"kp_pattern_t_ましょうか":{"exposure":434,"correctRate":0.8709677419354839},"kp_pattern_t_ないでください":{"exposure":432,"correctRate":0.8842592592592593},"kp_pattern_t_ありません":{"exposure":420,"correctRate":0.8928571428571429},"kp_pattern_t_ほう":{"exposure":416,"correctRate":0.8461538461538461},"kp_pattern_t_よ":{"exposure":415,"correctRate":0.8554216867469879},"kp_pattern_てしまった":{"exposure":414,"correctRate":0.7705314009661836},"kp_pattern_t_まで":{"exposure":413,"correctRate":0.8280871670702179},"kp_pattern_t_ある":{"exposure":411,"correctRate":0.8807785888077859},"kp_pattern_はず":{"exposure":406,"correctRate":0.5467980295566502},"kp_pattern_t_ませんか":{"exposure":405,"correctRate":0.9308641975308642},"kp_pattern_かもしれない":{"exposure":405,"correctRate":0.7037037037037037},"kp_wordform_bucket_N1":{"exposure":404,"correctRate":0.9579207920792079},"kp_pattern_にとって":{"exposure":403,"correctRate":0.7245657568238213},"kp_wordform_bucket_N2":{"exposure":394,"correctRate":0.8045685279187818},"kp_pattern_t_しかし":{"exposure":390,"correctRate":0.8358974358974359},"kp_pattern_くて":{"exposure":386,"correctRate":0.6580310880829016},"kp_pattern_t_どちら":{"exposure":385,"correctRate":0.9402597402597402},"kp_particle_も":{"exposure":384,"correctRate":0.4973958333333333}},"evidenceClassRatio":{"A":0.584,"B":0.346,"C":0.07},"groundTruth":{"n":1,"exactLevel":1,"withinOneLevel":1},"schemaVersions":{"1":110081,"2":101738,"3":233670},"engineVersions":{"v2":110081,"v2.1":144,"v2.2":233670}}