To test the effects of three behavioural interventions (daily monetary incentives + self-monitoring, delayed lump sum monetary incentives + self-monitoring, and self-monitoring only) on psychological constructs and fruit and vegetable consumption or physical activity behaviour change among a sample of adults with overweight or obesity.

中文翻译：

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在超重或肥胖个体中进行有或没有饮食和运动激励的自我监测干预的随机对照试验：心理和行为影响

测试三种行为干预（每日金钱激励 + 自我监测、延迟一次性金钱激励 + 自我监测和仅自我监测）对心理结构和水果和蔬菜消费或身体活动行为变化的影响超重或肥胖的成年人。