{"id":"W2019258788","doi":"10.1136/bmj.b2900","title":"The double jeopardy of clustered measurement and cluster randomisation","year":2009,"lang":"en","type":"article","venue":"BMJ","topic":"Breastfeeding Practices and Influences","field":"Medicine","cited_by":32,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University","funders":"Economic and Social Research Council","keywords":"Double jeopardy; Cluster (spacecraft); Cluster analysis; Cluster randomised controlled trial; Psychology; Medicine; Artificial intelligence; Computer science; Internal medicine; Randomized controlled trial; Political science; Law","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":["metaresearch"],"consensus_categories":["metaresearch"],"category_scores_codex":[0.518635,0.002431828,0.01115546,0.00407394,0.003188538,0.005591813,0.005333918,0.01776532,0.007090128],"category_scores_gemma":[0.7833753,0.002864871,0.009257698,0.006629261,0.01349417,0.00808908,0.005449518,0.01420335,0.002111939],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.007833532,"about_ca_system_score_gemma":0.007565006,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00555478,"about_ca_topic_score_gemma":0.004207703,"domain_scores_codex":[0.2952494,0.6071357,0.03907551,0.01299263,0.04389534,0.001651421],"domain_scores_gemma":[0.1497794,0.7344065,0.03361738,0.06302754,0.01764946,0.001519858],"domain_codex":"methods","domain_gemma":"methods","domain_candidate":"methods","domain_consensus":"methods","study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.02314835,0.0005454079,0.01104517,0.03098192,0.03107846,0.0009758627,0.01120937,0.007797298,0.001320668,0.3396618,0.1609635,0.3812723],"study_design_scores_gemma":[0.0362953,0.005702406,0.01176881,0.03589601,0.01553656,0.00324805,0.00195784,0.0382936,0.004877371,0.6801915,0.1643863,0.001846415],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.01948858,0.09042831,0.5298184,0.2641188,0.05719706,0.01413752,0.001273126,0.002141415,0.02139676],"genre_scores_gemma":[0.3129952,0.01367929,0.4033838,0.2130381,0.01740534,0.03137462,0.0003553526,0.001325803,0.006442568],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.481365,"threshold_uncertainty_score":0.5936087,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.05310730900162264,"score_gpt":0.328841763044711,"score_spread":0.2757344540430883,"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."}}