{"id":"W4415966001","doi":"10.1145/3769994.3770057","title":"Alternative Grading at Scale: Insights from Implementing Weekly Checkpoint Quizzes in a Large Introductory CS Course","year":2025,"lang":"","type":"article","venue":"","topic":"Teaching and Learning Programming","field":"Computer Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"","keywords":"Grading (engineering); Mathematical proof; Course (navigation); Computer aided instruction; Frequently asked questions","routes":{"ca_aff":true,"ca_fund":false,"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":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.002423487,0.0006470305,0.0007834072,0.0006753227,0.001258843,0.0009483996,0.001693593,0.000214375,0.0002339241],"category_scores_gemma":[0.0003666451,0.000650563,0.0002714395,0.001441443,0.0001819684,0.0008911489,0.003023303,0.001559169,0.00009442328],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000754773,"about_ca_system_score_gemma":0.000356878,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005145373,"about_ca_topic_score_gemma":0.00667279,"domain_scores_codex":[0.9932081,0.001190001,0.001319403,0.001971601,0.000689752,0.001621107],"domain_scores_gemma":[0.9972647,0.0006070007,0.0005405402,0.001187477,0.0001604596,0.0002398306],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0001043092,0.001598329,0.258938,0.0001846594,0.0006249298,0.0001879359,0.1232823,0.0005566503,0.003535848,0.06269956,0.00198294,0.5463046],"study_design_scores_gemma":[0.008241005,0.0004789311,0.2183677,0.002961746,0.0003000092,0.00001869975,0.0152774,0.4207572,0.01159601,0.006014063,0.3131749,0.002812386],"study_design_candidate":"design_other","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7352309,0.00380886,0.2522155,0.002987696,0.003110003,0.0004801747,0.000009839307,0.0003461441,0.001810857],"genre_scores_gemma":[0.9687041,0.0000659315,0.02588618,0.0005438254,0.0005722223,0.00003484309,0.00002464545,0.00003553626,0.004132715],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.5434922,"threshold_uncertainty_score":0.9995946,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01362028844344251,"score_gpt":0.2915411522685377,"score_spread":0.2779208638250952,"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."}}