{"id":"W4283272773","doi":"10.2196/preprints.40298","title":"Social Media Recruitment Strategies to Recruit Pregnant Women into a Longitudinal Observational Cohort Study: An Evaluation (Preprint)","year":2022,"lang":"en","type":"preprint","venue":"","topic":"Social Media in Health Education","field":"Social Sciences","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Social media; Context (archaeology); Advertising; Cohort; Observational study; Medicine; Psychology; Demography; Business; Computer science; World Wide Web; Geography; Sociology","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":["metaresearch"],"consensus_categories":[],"category_scores_codex":[0.12302,0.001515383,0.001662824,0.001120708,0.002069623,0.002568276,0.002162688,0.002753753,0.004953038],"category_scores_gemma":[0.1241293,0.001290571,0.003831147,0.001123631,0.001213804,0.003200479,0.002739589,0.001980026,0.001156798],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.004504081,"about_ca_system_score_gemma":0.01729289,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.006640597,"about_ca_topic_score_gemma":0.009719251,"domain_scores_codex":[0.9197325,0.06615701,0.005911754,0.001412545,0.004735126,0.002051009],"domain_scores_gemma":[0.9237192,0.04436903,0.008634544,0.006479084,0.01051455,0.006283682],"domain_codex":null,"domain_gemma":"methods","domain_candidate":"methods","domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.1023821,0.1449761,0.09096362,0.02041108,0.004310844,0.0004258399,0.01360646,0.001243019,0.001257507,0.001492082,0.02371024,0.5952212],"study_design_scores_gemma":[0.2706202,0.5005254,0.1648659,0.0160919,0.005509109,0.0002255718,0.01335266,0.004454874,0.002184948,0.001296749,0.02048141,0.0003913755],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.6364515,0.002545803,0.007247683,0.005082919,0.001067176,0.3401729,0.003168936,0.0003109439,0.00395214],"genre_scores_gemma":[0.382115,0.002823051,0.03491502,0.003571776,0.0005401876,0.5732793,0.001422134,0.00005862079,0.001274929],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.87698,"threshold_uncertainty_score":0.6505996,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.5645786334468338,"score_gpt":0.5280740177115448,"score_spread":0.03650461573528896,"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."}}