{"id":"W2021817747","doi":"10.1016/j.jclinepi.2009.05.007","title":"Trial sample size, but not trial quality, is associated with positive study outcome","year":2009,"lang":"en","type":"article","venue":"Journal of Clinical Epidemiology","topic":"Meta-analysis and systematic reviews","field":"Decision Sciences","cited_by":17,"is_retracted":false,"has_abstract":false,"ca_institutions":"McMaster University","funders":"National Center for Research Resources","keywords":"Medicine; Jadad scale; Randomized controlled trial; Sample size determination; Blinding; Logistic regression; Internal medicine; Clinical trial; Placebo; Outcome (game theory); Psychological intervention; Physical therapy; Alternative medicine; Statistics; Psychiatry; Pathology","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","metaepi_broad"],"consensus_categories":["metaresearch"],"category_scores_codex":[0.2969992,0.002037979,0.008951824,0.00378046,0.001272332,0.007182011,0.0029957,0.008357814,0.003093828],"category_scores_gemma":[0.6163002,0.001964214,0.02733797,0.00424573,0.005745614,0.006235909,0.004060898,0.006115902,0.0004302656],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001433636,"about_ca_system_score_gemma":0.00358779,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001303779,"about_ca_topic_score_gemma":0.00215154,"domain_scores_codex":[0.599386,0.2643637,0.09132275,0.01764873,0.02485035,0.002428457],"domain_scores_gemma":[0.1405986,0.7703986,0.05779022,0.02239942,0.006347949,0.002465205],"domain_codex":null,"domain_gemma":"methods","domain_candidate":"methods","domain_consensus":null,"study_design_codex":"meta_analysis","study_design_gemma":"observational","study_design_scores_codex":[0.04569753,0.000405937,0.3371035,0.04522004,0.50673,0.0009884633,0.001126056,0.002709892,0.001630157,0.003090384,0.003732106,0.05156595],"study_design_scores_gemma":[0.02972166,0.006624975,0.19055,0.0147291,0.7081344,0.003435707,0.0005046099,0.006758502,0.002282051,0.02977644,0.006968519,0.0005139433],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"review","genre_gemma":"empirical","genre_scores_codex":[0.2868349,0.5774136,0.08219531,0.02723102,0.008245141,0.005161847,0.003588006,0.00059205,0.008738007],"genre_scores_gemma":[0.9477146,0.01795843,0.01941222,0.007945748,0.001937149,0.003044441,0.001057851,0.0002972067,0.0006323109],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.9910482,"threshold_uncertainty_score":0.8669251,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.9570125176928788,"score_gpt":0.7341961162636582,"score_spread":0.2228164014292205,"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."}}