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Choice bundling, unpacked: Predicted and observed effects on intertemporal choice in an additive model of hyperbolic delay discounting

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dc.contributor.authorStein, Jeffrey S.en
dc.contributor.authorMadden, Gregory J.en
dc.date.accessioned2022-01-03T20:13:22Zen
dc.date.available2022-01-03T20:13:22Zen
dc.date.issued2021-11-12en
dc.date.updated2022-01-03T20:13:19Zen
dc.description.abstractOne method known to increase preference for larger, later rewards (LLRs) over smaller, sooner rewards (SSRs) is choice bundling, in which a single choice produces a series of repeating consequences over time. The present study examined whether effects of choice bundling on preference for LLRs: (1) increase with the number of rewards in the bundle (i.e., bundle size); (2) are independent of differences in reward magnitude between conditions; and (3) accord with predictions of an additive model of hyperbolic delay discounting, in which the value of a bundle of rewards can be expressed as the summed discounted value of all rewards in that bundle. Participants (N = 252) completed a choice task to assess valuation of monetary LLRs at bundle sizes of 1 (control), 3, and 9 rewards per choice (ascending/descending order counterbalanced). To control for the magnitude effect, the total reward amounts were held constant across conditions. Choice bundling significantly increased LLR preference (p < .001), with the largest effect observed at the largest bundle size. The descending bundle-size order produced significantly greater LLR preference than the ascending order (p < .05), although order did not significantly interact with bundle size. Difference scores between observed measures and those predicted by an additive model of hyperbolic discounting were small and not significantly different than zero, but were not equivalent to zero. Future research should investigate the clinical utility of choice bundling for reducing the maladaptive health behavior (e.g., substance use) with which delay discounting is associated.en
dc.description.versionPublished versionen
dc.format.extentPages e0259830-e0259830en
dc.format.extent18 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0259830en
dc.identifier.eissn1932-6203en
dc.identifier.issn1932-6203en
dc.identifier.issue11en
dc.identifier.orcidStein, Jeffrey [0000-0001-5251-3447]en
dc.identifier.otherPMC8589209en
dc.identifier.otherPONE-D-20-39167 (PII)en
dc.identifier.pmid34767599en
dc.identifier.urihttp://hdl.handle.net/10919/107327en
dc.identifier.volume16en
dc.language.isoenen
dc.publisherPLoSen
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/34767599en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subject.meshHumansen
dc.subject.meshRecordsen
dc.subject.meshRewarden
dc.subject.meshDelay Discountingen
dc.titleChoice bundling, unpacked: Predicted and observed effects on intertemporal choice in an additive model of hyperbolic delay discountingen
dc.title.serialPLoS Oneen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dcterms.dateAccepted2021-10-21en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/University Research Institutesen
pubs.organisational-group/Virginia Tech/University Research Institutes/Virginia Tech Carilion Research Instituteen
pubs.organisational-group/Virginia Tech/Faculty of Health Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen

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