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).
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
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.
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Estágio
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Singapore, Cingapura, 119077
- National University of Singapore
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
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)
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Outro
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Dobro
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
|---|---|
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Sem intervenção: Control
Subjects in the Control treatment are not given any financial incentive to achieve the goal.
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Experimental: 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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Experimental: 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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Experimental: 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.
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Giving different structures of long term (36 weeks) financial incentives to increase physical activity
|
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Experimental: 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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O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Step count goal -- Intervention
Prazo: 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
Prazo: 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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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Step count goal -- Post-intervention
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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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Colaboradores e Investigadores
Patrocinador
Patrocinador
Colaboradores
Colaboradores
Investigadores
Investigadores
- Investigador principal: Teck H Ho, PhD, National University of Singapore
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Início do estudo
Conclusão Primária (Real)
Conclusão Primária
Conclusão do estudo (Real)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
Outros números de identificação do estudo
- SG-STEP
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
Descrição do plano IPD
Prazo de Compartilhamento de IPD
Critérios de acesso de compartilhamento IPD
Tipo de informação de suporte de compartilhamento de IPD
- PROTOCOLO DE ESTUDO
- CIF
- ANALYTIC_CODE
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