A randomized trial to determine the impact on compliance of a psychophysical peripheral cue based on the Elaboration Likelihood Model

Horton, RJ, Minniti, A, Mireylees, SE and McEntegart, D, 2008. A randomized trial to determine the impact on compliance of a psychophysical peripheral cue based on the Elaboration Likelihood Model. Contemporary Clinical Trials, 29 (6), pp. 823-828.

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Abstract

Objective: Non-compliance in clinical studies is a significant issue, but causes remain unclear. Utilizing the Elaboration Likelihood Model of persuasion, this study assessed the psychophysical peripheral cue ‘Interactive Voice Response System (IVRS) call frequency’ on compliance. Methods: 71 participants were randomized to once daily (OD), twice daily (BID) or three times daily (TID) call schedules over two weeks. Participants completed 30-item cognitive function tests at each call. Compliance was defined as proportion of expected calls within a narrow window (± 30 min around scheduled time), and within a relaxed window (− 30 min to + 4 h). Data were analyzed by ANOVA and pairwise comparisons adjusted by the Bonferroni correction. Results: There was a relationship between call frequency and compliance. Bonferroni adjusted pairwise comparisons showed significantly higher compliance (p = 0.03) for the BID (51.0%) than TID (30.3%) for the narrow window; for the extended window, compliance was higher (p = 0.04) with OD (59.5%), than TID (38.4%). Conclusion: The IVRS psychophysical peripheral cue call frequency supported the ELM as a route to persuasion. The results also support OD strategy for optimal compliance. Models suggest specific indicators to enhance compliance with medication dosing and electronic patient diaries to improve health outcomes and data integrity respectively.

Item Type:	Journal article
Publication Title:	Contemporary Clinical Trials
Creators:	Horton, R.J., Minniti, A., Mireylees, S.E. and McEntegart, D.
Publisher:	Elsevier (not including Cell Press)
Date:	2008
Volume:	29
Number:	6
Identifiers:	Number Type 10.1016/j.cct.2008.08.005 DOI
Rights:	Copyright © 2008 Elsevier Inc. All rights reserved.
Divisions:	Schools > School of Science and Technology
Record created by:	EPrints Services
Date Added:	09 Oct 2015 10:16
Last Modified:	23 Aug 2016 09:09
URI:	https://irep.ntu.ac.uk/id/eprint/10407

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