{"id":"W2899988464","doi":"10.1186/s13063-018-2884-0","title":"DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial","year":2018,"lang":"en","type":"article","venue":"Trials","topic":"Health Systems, Economic Evaluations, Quality of Life","field":"Economics, Econometrics and Finance","cited_by":207,"is_retracted":false,"has_abstract":true,"ca_institutions":"Ottawa Hospital","funders":"Medical Research Council; National Institute for Health and Care Research","keywords":"Sample size determination; Randomized controlled trial; Sample (material); Medicine; Medical physics; Statistical power; Delphi method; Research design; Delphi; Computer science; Statistics; Artificial intelligence; Mathematics; Surgery","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":[0.4599481,0.004529885,0.009169977,0.01234809,0.003138337,0.01633679,0.01251746,0.04169001,0.06997375],"category_scores_gemma":[0.7601442,0.01047794,0.01362202,0.01151161,0.01115935,0.01064284,0.01259902,0.03888797,0.06740502],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01094821,"about_ca_system_score_gemma":0.06233891,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.007253337,"about_ca_topic_score_gemma":0.007732037,"domain_scores_codex":[0.3135514,0.542168,0.08222141,0.006922916,0.04966963,0.005466647],"domain_scores_gemma":[0.1572478,0.6649069,0.02894653,0.02605468,0.1161312,0.006712974],"domain_codex":"methods","domain_gemma":"methods","domain_candidate":"methods","domain_consensus":"methods","study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.001760561,0.0001430157,0.0003948105,0.02385489,0.0002917771,0.0003494362,0.003006147,0.0009061934,0.00055652,0.03387775,0.8372065,0.09765229],"study_design_scores_gemma":[0.004975276,0.000653501,0.001573213,0.05679217,0.0005267651,0.0007798629,0.0009542227,0.00250617,0.001173733,0.06359753,0.8660486,0.0004190092],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"commentary","genre_gemma":"methods","genre_scores_codex":[0.001303425,0.02064611,0.2985813,0.3610118,0.07602389,0.0961206,0.02762114,0.009191412,0.1095003],"genre_scores_gemma":[0.006576352,0.01179715,0.6040164,0.1308929,0.01018613,0.1919427,0.006006201,0.003220293,0.03536191],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.5400519,"threshold_uncertainty_score":0.6659802,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.6342082526411283,"score_gpt":0.5150491696595991,"score_spread":0.1191590829815292,"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."}}