{"id":"W2799331397","doi":"10.2196/humanfactors.9765","title":"Relationship Between Evidence Requirements, User Expectations, and Actual Experiences: Usability Evaluation of the Twazon Arabic Weight Loss App","year":2018,"lang":"en","type":"article","venue":"JMIR Human Factors","topic":"Mobile Health and mHealth Applications","field":"Health Professions","cited_by":12,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Deanship of Scientific Research, King Saud University; King Saud University","keywords":"Usability; mHealth; Psychological intervention; Weight loss; Focus group; Arabic; Psychology; Intervention (counseling); System usability scale; Applied psychology; Medicine; Obesity; Computer science; Internet privacy; Gerontology; Heuristic evaluation; Business; Nursing; Marketing","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":[0.03056075,0.0003742804,0.000574661,0.001091514,0.0006982354,0.002053706,0.0005300733,0.000490667,0.0009619329],"category_scores_gemma":[0.09230725,0.0003656231,0.001103883,0.0005940463,0.0005772229,0.001101849,0.001220427,0.0006450452,0.0001506383],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001039853,"about_ca_system_score_gemma":0.001548719,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001623512,"about_ca_topic_score_gemma":0.002701402,"domain_scores_codex":[0.9854997,0.007811605,0.002431558,0.000424416,0.003337473,0.0004951251],"domain_scores_gemma":[0.8888116,0.08319091,0.00698197,0.00235155,0.01686682,0.00179712],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.003570226,0.005400907,0.6069888,0.004291129,0.0006014514,0.001272869,0.1536779,0.0008759576,0.01132835,0.0002455771,0.001515801,0.2102309],"study_design_scores_gemma":[0.0005098027,0.02257197,0.8663594,0.001410378,0.001048699,0.002056459,0.0797473,0.008419407,0.01034813,0.0003882086,0.006836982,0.0003031887],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9983517,0.00009915538,0.0005730886,0.0000812131,0.000005475961,0.0003167923,0.00003880808,0.00001612326,0.0005177266],"genre_scores_gemma":[0.9934343,0.0001643562,0.005193969,0.00008281136,0.000007346934,0.0007325952,0.00007990739,0.00001256412,0.0002921408],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03056075,"threshold_uncertainty_score":0.1616226,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2837984919135445,"score_gpt":0.5158022041315088,"score_spread":0.2320037122179643,"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."}}