{"id":"W3174948220","doi":"10.2196/26475","title":"Trends in Positive, Negative, and Neutral Themes of Popular Music From 1998 to 2018: Observational Study","year":2021,"lang":"en","type":"article","venue":"JMIR Pediatrics and Parenting","topic":"Mental Health via Writing","field":"Psychology","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Lyrics; Popular music; Blues; Psychology; Rubric; Demography; Social psychology; Literature; History; Art; Sociology","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001381321,0.0002013802,0.0004711054,0.001962827,0.0008307406,0.0009156234,0.0005560481,0.0004505214,0.001747732],"category_scores_gemma":[0.006036437,0.0003690983,0.0004181137,0.001907037,0.0004070726,0.001086541,0.001104904,0.0007667968,0.0005842141],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007347024,"about_ca_system_score_gemma":0.0008977152,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0108221,"about_ca_topic_score_gemma":0.02231039,"domain_scores_codex":[0.9989958,0.0002083311,0.0001891215,0.0002168765,0.0002509995,0.000138814],"domain_scores_gemma":[0.9950175,0.0006459408,0.002342461,0.0001662117,0.001235478,0.0005925091],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001067427,0.00009250949,0.9941741,0.00008365016,0.00002809212,0.0001025849,0.002073251,0.000008668332,0.0001381199,0.00001516142,0.0005092044,0.00266789],"study_design_scores_gemma":[0.000007617374,0.000149052,0.9918264,0.00005579805,0.00002061933,0.0002895285,0.006583066,0.00007633492,0.0000654801,0.00001328711,0.0009032575,0.000009416747],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9971662,0.0002282753,0.00008733443,0.00004653485,0.000007580828,0.00009644552,0.001769458,0.00000470791,0.0005934056],"genre_scores_gemma":[0.9962713,0.0004771707,0.0003414707,0.00009374545,0.00002392077,0.0002697418,0.002047401,0.000009498832,0.0004658862],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0108221,"threshold_uncertainty_score":0.02151823,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1133012576451002,"score_gpt":0.3855375950602726,"score_spread":0.2722363374151724,"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."}}