{"id":"W4407823854","doi":"10.1101/2025.02.18.25322482","title":"A technology-based randomized controlled trial of self-affirmation and gain-framed health messaging to reduce sedentary behavior in older adults","year":2025,"lang":"en","type":"preprint","venue":"medRxiv","topic":"Physical Activity and Health","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"Douglas Mental Health University Institute; McGill University; McGill University Health Centre; University of Toronto; Montreal Neurological Institute and Hospital","funders":"National Center for Advancing Translational Sciences; National Center for Research Resources; Canadian Institutes of Health Research; Health Canada; National Institutes of Health; Canada First Research Excellence Fund; Alzheimer Society; Government of Canada; Harvard Catalyst; McGill University; Canadian Bee Research Fund; Natural Sciences and Engineering Research Council of Canada; Fondation Brain Canada; Alzheimer Society Research Program; Harvard University","keywords":"Randomized controlled trial; Psychology; Text messaging; Sedentary behavior; Applied psychology; Physical activity; Physical therapy; Medicine; Computer science; Internet privacy","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"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":[0.003359015,0.002120104,0.003237749,0.0008233775,0.0009575133,0.001325548,0.001266703,0.003648761,0.009814923],"category_scores_gemma":[0.005447841,0.001086687,0.001898975,0.0004560685,0.001614679,0.001750149,0.001002439,0.003244714,0.001282717],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009258351,"about_ca_system_score_gemma":0.001771057,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001173093,"about_ca_topic_score_gemma":0.001815574,"domain_scores_codex":[0.9975104,0.001167639,0.0002444916,0.0005581117,0.0002475397,0.0002717121],"domain_scores_gemma":[0.9975725,0.0008666244,0.0005899391,0.0002023814,0.0001898297,0.0005787786],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"randomized_trial","study_design_gemma":"randomized_trial","study_design_scores_codex":[0.9599169,0.02628318,0.0003142047,0.0007241455,0.0007710783,0.00002144656,0.00008944012,0.0001452449,0.001695888,0.0001009921,0.0003676957,0.009569782],"study_design_scores_gemma":[0.9317045,0.06638837,0.0008775914,0.00003492562,0.000312654,0.000007274249,0.00001526303,0.0001546256,0.0001943035,0.00008439319,0.0002179195,0.000008207599],"study_design_candidate":"randomized_trial","study_design_consensus":"randomized_trial","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9735827,0.002305237,0.001139206,0.0008645608,0.001374851,0.01778282,0.0007312207,0.0001853042,0.002034085],"genre_scores_gemma":[0.9395454,0.001478453,0.005864166,0.00164752,0.001162331,0.04579043,0.0006275785,0.00002424009,0.003859808],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.009814923,"threshold_uncertainty_score":0.03283417,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01537091444265895,"score_gpt":0.3337526607028531,"score_spread":0.3183817462601942,"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."}}