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<p>In-the-moment surveys administered when respondents participate in a predetermined event of interest—such as visiting a particular location or completing a specific activity—allow researchers to measure behaviors and experiences as the event occurs, situating data collection within the relevant context and reducing reliance on retrospective self-reports. However, data quality can be compromised if individuals are unwilling to participate or provide low-quality responses. In particular, the timing of survey prompts and the structure of incentives may affect data quality. We evaluated these issues in an experimental study of 610 individuals who used a custom smartphone app to answer a survey about each of their public transit trips over 2 weeks. Participants were randomly assigned to receive either daily or per-survey incentives, with surveys administered either during trips (in situ) or immediately afterward (near-time). Both daily incentives and in situ prompts significantly increased participation. In situ prompts also reduced “speeding” and increased the variation in survey responses across trips, suggesting improved accuracy in capturing event-specific details. These findings demonstrate that prompt timing—specifically, in situ prompts as opposed to near-time prompts—plays a key role in enhancing data quality for in-the-moment surveys.</p>

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The benefits of in situ reporting: Experimental evidence from in-the-moment surveys of public transit riders

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月26日

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  • Christopher Antoun,
  • Vanessa Frías-Martínez,
  • Anthony Garove,
  • Naman Awasthi,
  • Saad Mohammad Abrar

摘要

In-the-moment surveys administered when respondents participate in a predetermined event of interest—such as visiting a particular location or completing a specific activity—allow researchers to measure behaviors and experiences as the event occurs, situating data collection within the relevant context and reducing reliance on retrospective self-reports. However, data quality can be compromised if individuals are unwilling to participate or provide low-quality responses. In particular, the timing of survey prompts and the structure of incentives may affect data quality. We evaluated these issues in an experimental study of 610 individuals who used a custom smartphone app to answer a survey about each of their public transit trips over 2 weeks. Participants were randomly assigned to receive either daily or per-survey incentives, with surveys administered either during trips (in situ) or immediately afterward (near-time). Both daily incentives and in situ prompts significantly increased participation. In situ prompts also reduced “speeding” and increased the variation in survey responses across trips, suggesting improved accuracy in capturing event-specific details. These findings demonstrate that prompt timing—specifically, in situ prompts as opposed to near-time prompts—plays a key role in enhancing data quality for in-the-moment surveys.