{"id":"W2383109217","doi":"10.2196/humanfactors.4800","title":"The McMaster Optimal Aging Portal: Usability Evaluation of a Unique Evidence-Based Health Information Website","year":2016,"lang":"en","type":"article","venue":"JMIR Human Factors","topic":"Technology Use by Older Adults","field":"Social Sciences","cited_by":39,"is_retracted":false,"has_abstract":true,"ca_institutions":"McMaster University","funders":"","keywords":"Usability; Computer science; Web usability; World Wide Web; Health information; Internet portal; Information retrieval; Human–computer interaction; The Internet; Health care","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.03284761,0.0005573165,0.0008251459,0.001847089,0.001370762,0.002459129,0.001074287,0.001046013,0.003166276],"category_scores_gemma":[0.06262391,0.0005074989,0.001106116,0.001444035,0.001128558,0.001957794,0.00253425,0.000690081,0.0003675487],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001932253,"about_ca_system_score_gemma":0.005723454,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004627727,"about_ca_topic_score_gemma":0.01219768,"domain_scores_codex":[0.9797249,0.01467095,0.002305909,0.0006230031,0.002126401,0.0005487187],"domain_scores_gemma":[0.9370978,0.04650412,0.002570183,0.002887809,0.008636308,0.002303748],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.01775901,0.01946622,0.1145781,0.02943617,0.0009898227,0.002053902,0.09605972,0.002671646,0.01814624,0.001992202,0.02908047,0.6677664],"study_design_scores_gemma":[0.01614594,0.1305303,0.5368007,0.01225027,0.003556279,0.003101479,0.0947748,0.01813604,0.03063908,0.003201917,0.1493715,0.001491597],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9727095,0.0007227366,0.005831302,0.0006248095,0.00007311099,0.01334198,0.001043301,0.0005272648,0.00512595],"genre_scores_gemma":[0.923162,0.0008665578,0.05687154,0.0006903808,0.00006492499,0.0154327,0.001090456,0.0001591962,0.00166228],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03284761,"threshold_uncertainty_score":0.1737168,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0819473550415694,"score_gpt":0.3821157700139146,"score_spread":0.3001684149723451,"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."}}