Longitudinal studies provide unique opportunities to study dynamic developmental processes over time and are often afforded a high degree of credibility. Transparency facilitates evaluation of credibility, yet, research practices that can increase transparency, that is, open science practices, do not appear to be widely implemented in longitudinal developmental research. In the current article I discuss three open science practices (pre- and post-registration, Registered Reports, and data management) and the opportunities they bring to facilitate enhanced credibility in longitudinal studies. Drawing on my own experiences of conducting longitudinal developmental research on adolescent mental health, I provide practical examples of how these open science practices can be implemented. Using open science practices in longitudinal research is also accompanied by challenges, and I specifically discuss the issue of evidencing prior knowledge of data in Registered Reports and some potential solutions to this challenge.

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通过实施开放的科学实践提高纵向研究的可信度：机遇、实例和挑战

纵向研究为研究随时间推移的动态发展过程提供了独特的机会，并且通常具有很高的可信度。透明度有助于评估可信度，然而，可以提高透明度的研究实践，即开放科学实践，似乎并未在纵向发展研究中得到广泛实施。在当前的文章中，我讨论了三种开放的科学实践（注册前和注册后、注册报告和数据管理）以及它们为提高纵向研究的可信度带来的机会。借鉴我自己对青少年心理健康进行纵向发展研究的经验，我提供了如何实施这些开放科学实践的实际例子。