- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT05110716
Effects of Choice Bundling on Valuation of Delayed Gains and Losses in Cigarette Smokers
26 oktober 2021 uppdaterad av: 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.
Studieöversikt
Status
Avslutad
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Interventionell
Inskrivning (Faktisk)
308
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
-
-
Virginia
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Roanoke, Virginia, Förenta staterna, 24016
- Fralin Biomedical Research Institute at VTC
-
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
21 år och äldre (Vuxen, Äldre vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Beskrivning
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
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Grundläggande vetenskap
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Dubbel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
---|---|
Experimentell: Gains, Ascending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary gains in an ascending order of bundle size.
|
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
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).
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).
|
Experimentell: Gains, Descending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary gains in a descending order of bundle size.
|
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
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).
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).
|
Experimentell: Losses, Ascending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary losses in an ascending order of bundle size.
|
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
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).
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).
|
Experimentell: Losses, Descending Bundle-Size Order
Participants will complete the choice bundling adjusting-amount task for monetary losses in an ascending order of bundle size.
|
In this condition, each choice in the adjusting-amount task produces only a single consequence (e.g., lose $900 in 1 year).
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).
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).
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Indifference points
Tidsram: 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)
|
Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Utredare
- Huvudutredare: Warren K Bickel, PhD, Virginia Polytechnic Institute and State University
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Faktisk)
26 juli 2021
Primärt slutförande (Faktisk)
12 augusti 2021
Avslutad studie (Faktisk)
12 augusti 2021
Studieregistreringsdatum
Först inskickad
11 oktober 2021
Först inskickad som uppfyllde QC-kriterierna
26 oktober 2021
Första postat (Faktisk)
8 november 2021
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
8 november 2021
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
26 oktober 2021
Senast verifierad
1 oktober 2021
Mer information
Termer relaterade till denna studie
Andra studie-ID-nummer
- 20-827
- 5P01CA217806 (U.S.S. NIH-anslag/kontrakt)
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
JA
IPD-planbeskrivning
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.
Tidsram för IPD-delning
Data will become available immediately upon publication of the manuscript and will remain available for 5 years.
Läkemedels- och apparatinformation, studiedokument
Studerar en amerikansk FDA-reglerad läkemedelsprodukt
Nej
Studerar en amerikansk FDA-reglerad produktprodukt
Nej
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