Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/26436
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dc.contributor.authorKyonka, Elizabeth G Een
dc.contributor.authorSchutte, Nicola Sen
dc.date.accessioned2019-03-12T05:18:31Z-
dc.date.available2019-03-12T05:18:31Z-
dc.date.issued2018-12-
dc.identifier.citationAddiction, 113(12), p. 2173-2181en
dc.identifier.issn1360-0443en
dc.identifier.issn0965-2140en
dc.identifier.urihttps://hdl.handle.net/1959.11/26436-
dc.description.abstractBackground and aims A number of studies have investigated connections between probability discounting and gambling. The aim of this research was to obtain a meta-analytical weighted effect size for the relationship between shallow probability discounting (the tendency to overvalue reinforcement with lower odds) and gambling intensity and to examine whether a gambling diagnosis moderated this effect size such that the relationship is stronger for diagnosed problem gamblers. Methods A database search identified studies that (a) measured both probability discounting and gambling and (b) reported statistical results allowing calculation of an effect size for meta-analysis. The search resulted in 12 studies reporting statistical results for probability discounting and gambling. The studies comprised 1685 individuals from different cohorts and nations, and included gamblers and non-gamblers. The studies reported 18 effect sizes. Across studies, gambling severity was assessed through diagnosis and gambling intensity was assessed through self-report and performance. Comprehensive Meta Analysis software calculated the weighted effect size and moderating role of gambling diagnosis. Results Shallower probability discounting was associated with greater gambling severity or intensity in all 12 studies. Throughout the studies, the weighted meta-analytical effect size for the connection between probability discounting and gambling was significant, with Hedges’ g = 0.36 [standard error (SE) = 0.07, 95% confidence interval (CI) = 0.21, 0.50), P < 0.001]. Addressing the second aim of the study, individuals diagnosed with a gambling disorder or problem gambling compared with not diagnosed individuals showed an effect size of Hedges’ g = 0.79 (SE = 0.18, 95% CI = 0.45, 1.14) and a moderation analysis indicated that this type of comparison showed significantly stronger effects than effect sizes based on associations between probability discounting and gambling (Q₍₁₎=7.80, P =0.005). Conclusions There appears to be a positive association between problem gambling and shallow probability discounting (a cognitive bias that overvalues low probability gains and/or undervalues high probability losses).en
dc.languageenen
dc.publisherWiley-Blackwell Publishing Ltden
dc.relation.ispartofAddictionen
dc.titleProbability discounting and gambling: a meta-analysisen
dc.typeJournal Articleen
dc.identifier.doi10.1111/add.14397en
dc.subject.keywordsHealth, Clinical and Counselling Psychology-
dc.subject.keywordsMedical and Health Sciences-
local.contributor.firstnameElizabeth G Een
local.contributor.firstnameNicola Sen
local.subject.for2008170106 Health, Clinical and Counselling Psychologyen
local.subject.seo2008970111 Expanding Knowledge in the Medical and Health Sciencesen
local.profile.schoolSchool of Psychologyen
local.profile.schoolSchool of Psychologyen
local.profile.emailekyonka@une.edu.auen
local.profile.emailnschutte@une.edu.auen
local.output.categoryC1en
local.record.placeau-
local.record.institutionUniversity of New England-
local.identifier.epublicationsrecordune-20180727-111333-
local.publisher.placeUnited Kingdomen
local.format.startpage2173en
local.format.endpage2181en
local.identifier.scopusid85052844129en
local.peerreviewedYesen
local.identifier.volume113en
local.identifier.issue12en
local.title.subtitlea meta-analysisen
local.contributor.lastnameKyonkaen
local.contributor.lastnameSchutteen
dc.identifier.staffune-id:ekyonkaen
dc.identifier.staffune-id:nschutteen
local.profile.orcid0000-0001-7974-6080en
local.profile.orcid0000-0002-3294-7659en
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:20180727-111333-
local.identifier.unepublicationidune:1959.11/215858-
local.date.onlineversion2018-07-26-
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleProbability discounting and gamblingen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journal-
local.search.authorKyonka, Elizabeth G Een
local.search.authorSchutte, Nicola Sen
local.uneassociationUnknownen
local.identifier.wosid000449635400003en
local.year.available2018en
local.year.published2018en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/bea4490e-6bba-4baf-8816-92b28ab7dea1en
local.subject.for2020520302 Clinical psychologyen
local.subject.seo2020280103 Expanding knowledge in the biomedical and clinical scienceen
local.subject.seo2020280114 Expanding knowledge in Indigenous studiesen
local.subject.seo2020280112 Expanding knowledge in the health sciencesen
dc.notification.tokena9dc38d4-740d-4ee5-9a84-38cd8a2649caen
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School of Psychology
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