Structuring Financial Incentives to Increase Physical Activity
The purpose of this study is to evaluate the effectiveness of different structures of long term financial incentives on increasing physical activity performed by subjects, as measured by the number of steps walked per day.
Investigators are interested in studying whether physical activity increases during an intervention period (with incentives) and a post-intervention period (with no incentives).
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
The proposed study is a field experiment. Adults within the ages of 25 and 60 years of age, and with a body mass index of 22 or higher will be eligible to participate.
The study will consist of (1) a two-week baseline period, (2) a 36-week intervention period, and (3) a 12-week follow-up period.
At the beginning of the study, subjects will be given a wearable fitness device and their daily step count will be monitored for two weeks; this is the baseline period. After the two-week baseline period, the subjects will be randomly assigned to one of the five different conditions (Control, Gain, Loss, Gain Streak, or Loss Streak) and will be given the goal to increase their baseline step counts by 2,500 steps.
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HYPOTHESES -- Investigators expect the following:
- Loss Aversion: Subjects in the Loss treatment will achieve the goal on a greater number of days than subjects in the Gain treatment.
- Streak: Subjects in the Gain treatment will achieve the goal on a greater number of days than subjects in the Gain Streak treatment.
- Loss Streak: Subjects in the Loss treatment will achieve the goal on a greater number of days than subjects in the Loss Streak treatment. Whether subjects in the Loss Streak treatment will perform better or worse than subjects in the other two treatments will be investigated.
CONTRIBUTION -- Prior research has not examined the effect of a long term financial incentive (36 weeks) on individual behavior in achieving a goal. In this study, the investigators also examine two additional financial incentive structures: Gain Streak and Loss Streak. If the hypotheses are correct, the results have important implications for designing financial incentives to encourage good behavior and to encourage good habit formation across domains.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Singapore, Singapore, 119077
- National University of Singapore
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Singapore citizens and permanent residents
- Adults with BMI greater than 22
- Ownership of a smartphone or tablet
- Only one member per household can participate in the study
Exclusion Criteria:
- Women who are pregnant or breast feeding, or who intend to become pregnant over next year
- Subjects who are already participating in another physical activity program or study
- Subjects who are unable to participate for a total of 1 year
- Subjects who are unwilling to wear the fitness device
- Subjects who already walk more than 10,000 steps a day (self-reported per-day-average over seven days)
Subjects who have any of the following health conditions:
- high blood pressure
- high cholesterol
- heart attack
- heart failure
- stroke
- chronic obstructive pulmonary disease
- kidney disease
- diabetes (type 2)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Dobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Ingen indgriben: Control
Subjects in the Control treatment are not given any financial incentive to achieve the goal.
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Eksperimentel: Gain Treatment
Financial Incentive: Each subject in the Gain treatment will earn a certain amount of money for each day the goal is achieved.
The money earned will be added to a virtual account that the subject has, and will be paid to the subject at the end of the intervention period.
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Giving different structures of long term (36 weeks) financial incentives to increase physical activity
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Eksperimentel: Loss Treatment
Financial Incentive: Each subject in the Loss treatment will be given a certain amount of money in his/her virtual account at the beginning of every week.
For each day that the subject does not achieve the goal, a small portion of that money will be deducted from the virtual account.
The balance that is left in the virtual account will be paid to the subject at the end of the intervention period.
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Giving different structures of long term (36 weeks) financial incentives to increase physical activity
|
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Eksperimentel: Gain Streak Treatment
Financial Incentive: Each subject in the Gain Streak treatment get an increasing amount of money added to his/her virtual account for every continuous day that they achieve the goal.
The maximum cumulative amount per week is same as in the other treatment conditions.
The payment is reset at the beginning of each week, or if the subject misses the goal on any day.
The money in the virtual account will be paid to the subject at the end of the intervention period.
|
Giving different structures of long term (36 weeks) financial incentives to increase physical activity
|
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Eksperimentel: Loss Streak Treatment
Financial Incentive: Each subject in the Loss Streak treatment will be given a certain amount of money in his/her virtual account at the beginning of every week.
An increasing amount of money will be deducted for each consecutive day the subject does not achieve the goal.
The payment is reset at the beginning of each week, or when the subject achieves the goal (i.e., deductions are reset when the streak is broken).
The balance that is left in the virtual account will be paid to the subject at the end of the intervention period.
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Giving different structures of long term (36 weeks) financial incentives to increase physical activity
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Step count goal -- Intervention
Tidsramme: 36-week intervention period following the baseline period.
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Proportion of participant-days on which the goal (baseline +2,500 steps) was achieved during the intervention period.
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36-week intervention period following the baseline period.
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Change in mean daily steps -- Intervention
Tidsramme: 36-week intervention period following the baseline period.
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Change in mean daily steps during the intervention period.
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36-week intervention period following the baseline period.
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Step count goal -- Post-intervention
Tidsramme: 12-week post-intervention period.
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Proportion of participant-days on which the goal (baseline +2,500 steps) was achieved during the post-intervention period.
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12-week post-intervention period.
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Change in mean daily steps -- Post-intervention
Tidsramme: 12-week post-intervention period.
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Change in mean daily steps during the post-intervention period.
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12-week post-intervention period.
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Sleep Pattern -- Intervention
Tidsramme: 36-week intervention period following the baseline period.
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Changes in sleep pattern (deep sleep, hours of continuous sleep) during the intervention period.
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36-week intervention period following the baseline period.
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Sleep Pattern -- Post-intervention
Tidsramme: 12-week post-intervention period.
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Changes in sleep pattern (deep sleep, hours of continuous sleep) during the post-intervention period.
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12-week post-intervention period.
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Weight (in kilograms) Loss -- Intervention
Tidsramme: 36-week intervention period following the baseline period.
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Drop in weight from baseline to the end of the intervention period.
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36-week intervention period following the baseline period.
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Weight (in kilograms) Loss -- Post-intervention
Tidsramme: 48-week period following the baseline period.
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Drop in weight from baseline to the end of the post-intervention period.
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48-week period following the baseline period.
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Change in Waist Measurement (in inches) -- Intervention
Tidsramme: 36-week intervention period following the baseline period
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Change in waist measurements from baseline to the end of the intervention period.
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36-week intervention period following the baseline period
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Change in Waist Measurement (in inches) -- Post-intervention
Tidsramme: 48-week period following the baseline period.
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Change in waist measurements from baseline to the end of the post-intervention period.
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48-week period following the baseline period.
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Teck H Ho, PhD, National University of Singapore
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- SG-STEP
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
IPD-delingstidsramme
IPD-delingsadgangskriterier
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- ICF
- ANALYTIC_CODE
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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