{"id":"W3138050756","doi":"10.2196/25513","title":"A Multiple Health Behavior Change, Self-Monitoring Mobile App for Adolescents: Development and Usability Study of the Health4Life App","year":2021,"lang":"en","type":"article","venue":"JMIR Formative Research","topic":"Mobile Health and mHealth Applications","field":"Health Professions","cited_by":71,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Health and Medical Research Council; Medical Research Council; Paul Ramsay Foundation","keywords":"Helpfulness; Usability; Mobile apps; Applied psychology; App store; Recreation; Behavior change; mHealth; Smartphone app; Psychology; Psychological intervention; Medicine; Computer science; Internet privacy; World Wide Web; Human–computer interaction; Social psychology; Psychiatry","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":"codex-gemma-dda1882f352a","candidate_categories":["sts"],"consensus_categories":[],"category_scores_codex":[0.004314946,0.0001984969,0.0004910065,0.0001599567,0.003659721,0.0000148988,0.000302064,0.0001442079,0.00001283774],"category_scores_gemma":[0.0001882984,0.0001409975,0.00004517562,0.0009190626,0.0001258902,0.0001816453,0.0004418379,0.001196315,0.00001403746],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009052318,"about_ca_system_score_gemma":0.003722787,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0005710559,"about_ca_topic_score_gemma":0.001628241,"domain_scores_codex":[0.9942684,0.001820552,0.001212494,0.0005031649,0.0008740604,0.001321401],"domain_scores_gemma":[0.9957459,0.001098474,0.0004561646,0.000724703,0.001349046,0.0006257289],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002364929,0.00433306,0.8032714,0.009868477,0.0000210568,6.464468e-7,0.1056235,9.29954e-7,0.00001855574,0.0001354299,0.0007985823,0.07569185],"study_design_scores_gemma":[0.003508614,0.001064631,0.8419362,0.0008602954,0.000007233127,0.000002015712,0.0812149,0.00006535483,0.0001480702,0.00001924466,0.07103995,0.0001334414],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9567638,0.0004977794,0.00009394283,0.0009203309,0.0002575898,0.04123948,0.00008265082,0.0000819347,0.00006246952],"genre_scores_gemma":[0.7770473,0.0001826372,0.0008589728,0.0002227728,0.0001452414,0.2214254,0.00002227476,0.00002596454,0.00006952484],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1801859,"threshold_uncertainty_score":0.9976374,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2070839216427234,"score_gpt":0.5477529788478254,"score_spread":0.340669057205102,"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."}}