{"id":"W3007476422","doi":"10.2196/16674","title":"Low-Cost Consumer-Based Trackers to Measure Physical Activity and Sleep Duration Among Adults in Free-Living Conditions: Validation Study","year":2020,"lang":"en","type":"article","venue":"JMIR mhealth and uhealth","topic":"Physical Activity and Health","field":"Medicine","cited_by":61,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Activity tracker; Intraclass correlation; Physical therapy; Actigraphy; Activity monitor; Physical activity; Medicine; Physical medicine and rehabilitation; Psychological intervention; Spearman's rank correlation coefficient; Pedometer; Concurrent validity; Psychology; Statistics; Patient satisfaction; Psychometrics; Mathematics; Clinical psychology; Nursing","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":[],"consensus_categories":[],"category_scores_codex":[0.0004091423,0.0002091488,0.0005663653,0.0001324576,0.000248705,0.00003117458,0.00005478537,0.00009858714,0.0000082182],"category_scores_gemma":[0.0003323662,0.0002039854,0.00003762601,0.0004500122,0.00008881887,0.000338356,0.00003155317,0.0005645283,0.000008420693],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000174845,"about_ca_system_score_gemma":0.0003935201,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001018515,"about_ca_topic_score_gemma":0.0009681805,"domain_scores_codex":[0.9979947,0.0003257533,0.0003265435,0.0005379013,0.0003651546,0.0004499277],"domain_scores_gemma":[0.9981274,0.0003196973,0.0001717883,0.0002091879,0.00008250094,0.001089433],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.01159548,0.03213465,0.5373526,0.01781344,0.0001085691,0.00008920424,0.06420763,0.0001563122,0.002180879,0.0004347541,0.002112384,0.3318141],"study_design_scores_gemma":[0.003951254,0.002408609,0.9822021,0.0004671233,0.00007434809,0.000002963397,0.00113245,0.009139771,0.0003609624,0.00004888068,0.00002973008,0.0001818812],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9783727,0.00005333702,0.0002504969,0.01789635,0.00005573563,0.003193078,0.00006585296,0.00007876902,0.00003368131],"genre_scores_gemma":[0.9971913,0.00003906514,0.00005640462,0.002169773,0.0002267385,0.0002586921,0.00003368131,0.00002116617,0.000003180087],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4448494,"threshold_uncertainty_score":0.8318284,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.07276987158574011,"score_gpt":0.380862213578639,"score_spread":0.3080923419928989,"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."}}