{"id":"W3107720226","doi":"10.5964/jnc.v6i3.310","title":"Refuting misconceptions: Computer tutors for fraction arithmetic","year":2020,"lang":"en","type":"article","venue":"Journal of Numerical Cognition","topic":"Cognitive and developmental aspects of mathematical skills","field":"Mathematics","cited_by":7,"is_retracted":false,"has_abstract":true,"ca_institutions":"Carleton University","funders":"Social Sciences and Humanities Research Council of Canada; Natural Sciences and Engineering Research Council of Canada","keywords":"TUTOR; Fraction (chemistry); Arithmetic; Mathematics education; Computer science; Psychology; Mathematics","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002661076,0.0001203257,0.0003227906,0.00005574582,0.00009068668,0.00004595805,0.0000837302,0.00005721641,0.0001859001],"category_scores_gemma":[0.001847171,0.0000973795,0.0001984355,0.0001634053,0.00003290911,0.000236699,0.00002673447,0.0002081132,0.00004276937],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00005115616,"about_ca_system_score_gemma":0.00003333153,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":2.976095e-7,"about_ca_topic_score_gemma":7.774016e-8,"domain_scores_codex":[0.9987767,0.00005294858,0.0005944192,0.0001246208,0.0002970276,0.0001543121],"domain_scores_gemma":[0.9978776,0.001067776,0.0004346975,0.00003931141,0.0004201699,0.0001604303],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.002678536,0.004940002,0.0007047675,0.002415908,0.001613707,0.000225986,0.004833808,0.0000576835,0.02234051,0.03210027,0.08376951,0.8443193],"study_design_scores_gemma":[0.005119349,0.00430681,0.001870716,0.001135783,0.0007569646,0.0003789554,0.001489823,0.01366071,0.0101004,0.9517986,0.00858178,0.000800063],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.04781163,0.00003030266,0.9483851,0.00242198,0.0001556658,0.0002518391,0.000007649561,0.00003626134,0.0008995543],"genre_scores_gemma":[0.7415434,0.000008940146,0.2562056,0.001334826,0.0008582952,0.000007996862,0.000006282289,0.00001870142,0.00001589815],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.9196984,"threshold_uncertainty_score":0.3971021,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.08191315954781898,"score_gpt":0.3398377125273709,"score_spread":0.2579245529795519,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}