{"doi":"10.1037/hea0001505","title":"Mechanisms of change in a randomized control pilot study of partner-involved financial incentive treatments for dual-smoking couples.","abstract":"OBJECTIVE: Dual-smoker couples exhibit highly interdependent smoking behaviors, less frequent quit attempts, higher risk of relapse, and lower cessation rates. Financial incentive treatments are a promising form of intervention that lead to abstinence and can be adapted to address the motivational and relationship obstacles that dual-smoker couples face. METHOD: = 190) in a randomized controlled trial (National Clinical Trials 04832360) to investigate the potential mechanisms by which two versions of partner-involved financial incentive treatments (combined in analyses) might facilitate quitting relative to a no-incentive control. Dyadic structural equation modeling tested whether the dyadic interventions impacted the likelihood of individual and couple-level cessation and whether these effects were mediated by individual (i.e., motivation) and relationship (i.e., partner support) processes. RESULTS: The results suggest that self-directed and partner-directed motivation changed in response to partner-involved financial incentive treatments. Change in self-directed motivation mediated the effect of the intervention on individual and joint abstinence at follow-up; partner-directed motivation also mediated the effect of the intervention on joint abstinence at follow-up. CONCLUSIONS: Our findings highlight the benefits of dyadic adaptations of treatments for dual-smoker couples and point to potential motivational mechanisms of behavior change. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","journal":"Health Psychology","year":2025,"id":552411,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":1,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9554,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2025-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1448846,"name":"Julian W. C. Wright","orcid":null,"position":1,"is_corresponding":false},{"id":1448847,"name":"Brittnee M Hampton","orcid":null,"position":2,"is_corresponding":false},{"id":609087,"name":"Krista W. Ranby","orcid":"0000-0003-3587-9599","position":3,"is_corresponding":false},{"id":250298,"name":"Steven R. H. Beach","orcid":"0000-0001-8053-7761","position":4,"is_corresponding":false},{"id":255335,"name":"Ye Shen","orcid":"0000-0002-6662-0048","position":5,"is_corresponding":false},{"id":308313,"name":"James MacKillop","orcid":"0000-0002-8695-1071","position":6,"is_corresponding":false},{"id":1101307,"name":"Michelle R. vanDellen","orcid":"0000-0002-3457-194X","position":0,"is_corresponding":true}],"reference_count":0,"raw_metadata":null,"created_at":"2026-07-19T02:54:33.203144Z","pmid":"40244984","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}