{"id":"W4408540956","doi":"10.1097/jsm.0000000000001345","title":"Who Is Keeping Score: The Effect of a Mercy Rule on Head Impact Rates in Canadian High School Tackle Football Games","year":2025,"lang":"en","type":"article","venue":"Clinical Journal of Sport Medicine","topic":"Traumatic Brain Injury Research","field":"Medicine","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Libin Cardiovascular Institute of Alberta; Hotchkiss Brain Institute; Alberta Children's Hospital; University of Victoria; University of Calgary; University of Alberta","funders":"","keywords":"Football; Medicine; Confidence interval; Head (geology); American football; Head start; Demography; Incidence (geometry); Physical therapy; Psychology; Mathematics; Internal medicine; Developmental psychology; Geometry; Geography","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.002233478,0.0005321116,0.0004996996,0.001426788,0.001261571,0.001548539,0.002218367,0.0009162269,0.002964021],"category_scores_gemma":[0.01481245,0.0003319409,0.001098644,0.001463672,0.0009962873,0.0006102735,0.001031316,0.001098467,0.0003373464],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.007697577,"about_ca_system_score_gemma":0.009497795,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9283363,"about_ca_topic_score_gemma":0.9449673,"domain_scores_codex":[0.9960582,0.0003876923,0.000200486,0.0005892296,0.001930306,0.0008341252],"domain_scores_gemma":[0.993153,0.0007584801,0.002982697,0.0002489282,0.00146179,0.001395145],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001625556,0.00005763879,0.9930981,0.00002856425,0.00009799875,0.00003208966,0.0001850857,0.0001262915,0.00005576839,0.00004455162,0.0006187731,0.005492568],"study_design_scores_gemma":[0.000002492226,0.00003838283,0.9993344,0.00001851977,0.00002666509,0.00001685775,0.0002179439,0.0001600438,0.00001624955,0.00000884181,0.0001542791,0.000005369922],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9904653,0.0009642423,0.0002308606,0.0005778191,0.00005142122,0.00007282561,0.001641646,0.00002337742,0.005972486],"genre_scores_gemma":[0.9982641,0.0002403029,0.0001705202,0.00005468679,0.000009912244,0.00001178494,0.0005889676,0.000006732478,0.0006530964],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.07166374,"threshold_uncertainty_score":0.1441715,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.06788798597584571,"score_gpt":0.4675160331493324,"score_spread":0.3996280471734867,"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."}}