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Effects of Choice Bundling on Valuation of Delayed Gains and Losses in Cigarette Smokers

26 oktober 2021 bijgewerkt door: Warren K. Bickel, Virginia Polytechnic Institute and State University
The present study will investigate the effects of choice bundling, in which a single choice produces a series of repeating consequences, on valuation of delayed monetary gains and losses in an online panel of cigarette smokers.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Choice bundling, in which a single choice produces a series of repeating consequences, has been shown to increase valuation of delayed monetary and non-monetary gains. Interventions derived from this manipulation may be an effective method for mitigating the elevated delay discounting rates observed in cigarette smokers. No prior work, however, has investigated whether effects of choice bundling generalize to reward losses. In the present study, an online panel of cigarette smokers, recruited using Ipsos, will complete assessments for either monetary gains or losses (randomly assigned). In Step 1, participants will complete a delay-discounting task to establish Effective Delay 50 (ED50), or the delay required for a monetary outcome to lose half of its value. In Step 2, participants will complete three conditions of an adjusting-amount task, choosing between a smaller, sooner (SS) adjusting amount and a larger, later (LL) fixed amount. The bundle size (i.e., number of consequences) will be manipulated across conditions, where a single choice will produce either 1 (control), 3, or 9 consequences over time (ascending/descending order counterbalanced). The delay to the first LL amount in each condition, as well as the intervals between all additional SS and LL amounts (where applicable), will be set to individual participants' ED50 values from Step 1 to control for differences in discounting of gains and losses.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

308

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Virginia
      • Roanoke, Virginia, Verenigde Staten, 24016
        • Fralin Biomedical Research Institute at VTC

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

21 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • currently smoke at least 10 cigarettes per day
  • have smoked at least 100 cigarettes (lifetime), and
  • are 21 years of age or older.

Exclusion Criteria:

  • Inaccurate identification of usual brand cigarette's as menthol or non-menthol

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Fundamentele wetenschap
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Dubbele

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Gains, Ascending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary gains in an ascending order of bundle size.
Gedragsmatig: Bundle-size 1
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
Gedragsmatig: Bundle-size 3
In this condition, each choice in the adjusting-amount task produce a series of three consequences over time. o hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $300 in 1 year, lose $300 in 2 years, lose $300 in 3 years).
Gedragsmatig: Bundle-size 9
In this condition, each choice in the adjusting-amount task produce a series of nine consequences over time. To hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $100 in 1 year, lose $100 in 2 years, lose $100 in 3 years...lose $100 in 9 years).
Experimenteel: Gains, Descending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary gains in a descending order of bundle size.
Gedragsmatig: Bundle-size 1
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
Gedragsmatig: Bundle-size 3
In this condition, each choice in the adjusting-amount task produce a series of three consequences over time. o hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $300 in 1 year, lose $300 in 2 years, lose $300 in 3 years).
Gedragsmatig: Bundle-size 9
In this condition, each choice in the adjusting-amount task produce a series of nine consequences over time. To hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $100 in 1 year, lose $100 in 2 years, lose $100 in 3 years...lose $100 in 9 years).
Experimenteel: Losses, Ascending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary losses in an ascending order of bundle size.
Gedragsmatig: Bundle-size 1
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
Gedragsmatig: Bundle-size 3
In this condition, each choice in the adjusting-amount task produce a series of three consequences over time. o hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $300 in 1 year, lose $300 in 2 years, lose $300 in 3 years).
Gedragsmatig: Bundle-size 9
In this condition, each choice in the adjusting-amount task produce a series of nine consequences over time. To hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $100 in 1 year, lose $100 in 2 years, lose $100 in 3 years...lose $100 in 9 years).
Experimenteel: Losses, Descending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary losses in an ascending order of bundle size.
Gedragsmatig: Bundle-size 1
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
Gedragsmatig: Bundle-size 3
In this condition, each choice in the adjusting-amount task produce a series of three consequences over time. o hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $300 in 1 year, lose $300 in 2 years, lose $300 in 3 years).
Gedragsmatig: Bundle-size 9
In this condition, each choice in the adjusting-amount task produce a series of nine consequences over time. To hold total amount constant across conditions, the $900 available in the bundle-size 1 condition will be distributed equally across all consequences in the series. (e.g., lose $100 in 1 year, lose $100 in 2 years, lose $100 in 3 years...lose $100 in 9 years).

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Indifference points
Tijdsspanne: 1 day (same session)
Participants complete three conditions of the adjusting-amount task (one at each bundle size), in which they choose between a larger, delayed amount ($900) and a smaller, immediate amount. Across trials, the smaller amount titrates until reaching an indifference point. This indifference point provides an index of the value of the larger option. For example, an indifference point of $300 indicates the larger, delayed amount as been discounted by two thirds. Higher values reflect less delay discounting.
1 day (same session)

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Virginia Polytechnic Institute and State University

Medewerkers

National Cancer Institute (NCI)
University of Minnesota

Onderzoekers

  • Hoofdonderzoeker: Warren K Bickel, PhD, Virginia Polytechnic Institute and State University

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

26 juli 2021

Primaire voltooiing (Werkelijk)

12 augustus 2021

Studie voltooiing (Werkelijk)

12 augustus 2021

Studieregistratiedata

Eerst ingediend

11 oktober 2021

Eerst ingediend dat voldeed aan de QC-criteria

26 oktober 2021

Eerst geplaatst (Werkelijk)

8 november 2021

Updates van studierecords

Laatste update geplaatst (Werkelijk)

8 november 2021

Laatste update ingediend die voldeed aan QC-criteria

26 oktober 2021

Laatst geverifieerd

1 oktober 2021

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Andere studie-ID-nummers

  • 20-827
  • 5P01CA217806 (Subsidie/contract van de Amerikaanse NIH)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

De-identified participant data will be made available from the Open Science Framework (OSF) database. The url providing access to data will be provided in study publications.

IPD-tijdsbestek voor delen

Data will become available immediately upon publication of the manuscript and will remain available for 5 years.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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