Journal
PSYCHOLOGY & HEALTH
Volume 36, Issue 5, Pages 529-548Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08870446.2020.1788715
Keywords
Medication adherence; temporal self-regulation theory; habit; cues; planning
Funding
- Australian Government through the Stipend Scholarship program for Higher Degree by Research students
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The study aimed to explore the applicability of temporal self-regulation theory (TST) in medication adherence, utilizing two self-report measures of behavior. Results showed that TST constructs explained 51.5% of variance in adherence as assessed by the rating scale, with past behavior and cues being significant factors. Intention, cues, and self-control were significant predictors in measuring adherence through the timeline follow-back method.
Objective This study aimed to explore the applicability of temporal self-regulation theory (TST) in adherence to medication, using two self-report measures of behaviour. Design Recruited through TurkPrime, 191 US adults completed a two-part study. Main outcome measures TST constructs of intention, behavioural prepotency (past behaviour, habit, cues), self-regulation (self-control, planning) with regimen complexity, and side effects were measured at time one. At time two, adherence behaviour over the previous week was measured using a revised medication adherence rating scale and an adapted timeline follow-back. Results Constructs of TST accounted for 51.5% of variance in adherence as assessed by the rating scale. Past behaviour and cues were significant. Habit and planning moderated the intention-adherence relationship. Similarly, the TST constructs accounted for 20.6% of variance when measured by the timeline follow-back. Intention, cues and self-control were significant predictors. Interestingly, cues was the only common significant predictor. Conclusion TST was partially supported and the role of both rational and automatic factors was supported, however findings differed depending on the type of measure. Future developers of interventions may consider targeting cues to improve medication adherence. Future research also needs to further explore the role of intention, past behaviour, self-control, habit and planning in medication adherence.
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