{"id":"W2321687257","doi":"10.2196/mhealth.5114","title":"Diet and Physical Activity Apps: Perceived Effectiveness by App Users","year":2016,"lang":"en","type":"article","venue":"JMIR mhealth and uhealth","topic":"Mobile Health and mHealth Applications","field":"Health Professions","cited_by":126,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Usability; Physical activity; mHealth; Smartphone app; Norwegian; Healthy eating; Psychology; Mobile apps; Medicine; Gerontology; Psychological intervention; Internet privacy; World Wide Web; Physical therapy; Computer science; 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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.008616322,0.0003997441,0.0004336172,0.001094936,0.0004333745,0.00169923,0.000296238,0.0006217145,0.001419688],"category_scores_gemma":[0.03863195,0.0002495921,0.0008677218,0.0004148969,0.0003969313,0.001283556,0.0008991272,0.0004893713,0.0003253617],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002026482,"about_ca_system_score_gemma":0.0002689935,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001317955,"about_ca_topic_score_gemma":0.001039753,"domain_scores_codex":[0.9950434,0.0021535,0.0007567229,0.0003070109,0.00147055,0.0002688442],"domain_scores_gemma":[0.9609095,0.02802797,0.004196449,0.0006806473,0.005069748,0.001115802],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000852417,0.000493069,0.9226211,0.0005797044,0.0003816808,0.0002793931,0.01503068,0.0001952639,0.002841284,0.00005829384,0.0006264895,0.05604069],"study_design_scores_gemma":[0.00004575461,0.002311143,0.9779593,0.0002590999,0.0004040367,0.001191007,0.01191601,0.001687621,0.001433433,0.00008192573,0.002628399,0.0000821574],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9967007,0.0007533419,0.0005140946,0.0001114786,0.00001795592,0.00009312198,0.0001307975,0.00002841496,0.001649959],"genre_scores_gemma":[0.9978347,0.0004523874,0.0009230059,0.00008439688,0.0000202501,0.0001047419,0.000131665,0.00001328615,0.0004356118],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.008616322,"threshold_uncertainty_score":0.04556805,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0529191691826831,"score_gpt":0.4495563709794353,"score_spread":0.3966372017967522,"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."}}