{"id":"W3142784336","doi":"10.3386/w27891","title":"Face Masks, Public Policies and Slowing the Spread of COVID-19: Evidence from Canada","year":2020,"lang":"en","type":"preprint","venue":"National Bureau of Economic Research","topic":"COVID-19 epidemiological studies","field":"Mathematics","cited_by":23,"is_retracted":false,"has_abstract":true,"ca_institutions":"Simon Fraser University","funders":"","keywords":"Coronavirus disease 2019 (COVID-19); Counterfactual thinking; Mandate; Face masks; 2019-20 coronavirus outbreak; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Public health; Demographic economics; Demography; Environmental health; Geography; Medicine; Economics; Political science; Psychology; Sociology; Virology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["metaresearch"],"consensus_categories":[],"category_scores_codex":[0.00530239,0.0002291052,0.0007741493,0.0001643417,0.0002262392,0.00006627726,0.001188353,0.0002156438,0.000197777],"category_scores_gemma":[0.1052451,0.0001709738,0.0001333843,0.000152107,0.000667512,0.0000880869,0.002852054,0.0009224852,0.000005324147],"about_ca_system_candidate":true,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001944791,"about_ca_system_score_gemma":0.006392385,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.7962894,"about_ca_topic_score_gemma":0.3560022,"domain_scores_codex":[0.9963763,0.0007759812,0.0008894409,0.0006307329,0.0009573401,0.0003702475],"domain_scores_gemma":[0.9443246,0.05404517,0.0004569733,0.0004636979,0.0004773426,0.0002322749],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0001290228,0.00006006401,0.03660683,0.001682677,0.001027916,0.0000063542,0.002316235,0.004843186,0.0002966099,0.7978472,0.1547279,0.0004560335],"study_design_scores_gemma":[0.0001658144,0.00002948503,0.008017627,0.0001532442,0.0000228751,7.795194e-7,0.0005918771,0.002584396,0.00013266,0.9852417,0.002906147,0.0001534073],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"commentary","genre_gemma":"empirical","genre_scores_codex":[0.3680625,0.009372886,0.001105158,0.6075392,0.0003840737,0.002455158,0.001607482,0.00006315092,0.009410409],"genre_scores_gemma":[0.9968843,0.0009485687,0.0008775488,0.0007829089,0.000232251,0.0001058421,0.00004177615,0.00001731681,0.0001094935],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.6288218,"threshold_uncertainty_score":0.9992405,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.7965081527378616,"score_gpt":0.5939305033166989,"score_spread":0.2025776494211626,"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."}}