Background Procrastination, defined as irrational and voluntary delaying of necessary tasks, is widespread and clinically relevant. Its high prevalence among college students comes with serious consequences for mental health and well-being of those affected. Research for proper treatment is still relatively scarce and treatment of choice seems to be cognitive behavior therapy (CBT). The aim of this study is to evaluate the effectiveness and acceptability of an internet- and mobile-based intervention (IMI) for procrastination based on CBT for college students. Methods A two-armed randomized controlled trial with a calculated sample size of N = 120 participants with problematic procrastination behavior will be conducted. Students will be recruited in Germany, Austria and Switzerland via circular emails at 15+ cooperating universities in the framework of StudiCare, a well-established project that provides IMIs to college students for different health related issues. The intervention group will receive the e-coach guided 5-week IMI StudiCare Procrastination. A waitlist-control group will get access to the unguided IMI 12 weeks after randomization. Assessments will take place before as well as 6 and 12 weeks after randomization. Primary outcome is procrastination, measured by the Irrational Procrastination Scale (IPS). Secondary outcomes include susceptibility to temptation, depression, anxiety, wellbeing and self-efficacy as well as acceptability aspects such as intervention satisfaction, adherence and potential side effects. Additionally, several potential moderators as well as the potential mediators self-efficacy and susceptibility to temptation will be examined exploratorily. Data-analysis will be performed on intention-to-treat basis. Discussion This study will contribute to the evidence concerning effectiveness and acceptability of an intervention for procrastination delivered via the internet. If it shows to be effective, StudiCare Procrastination could provide a low-threshold, cost-efficient way to help the multitude of students suffering from problems caused by procrastination. Trial registration: The trial is registered at the WHO International Clinical Trials Registry Platform via the German Clinical Studies Trial Register (DRKS): DRKS00014321 (date of registration: 06.04.2018). In case of important protocol modifications, trial registration will be updated. Trial status: This is protocol version number 1, 11th December 2019. Recruitment started 9th of April 2018 and was completed 30th of November 2018. Assessment and intervention are still ongoing and will be completed by April 2019.

中文翻译：

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基于互联网的大学生拖延干预措施的有效性（StudiCare Procrastination）：随机对照试验的研究方案。


背景 拖延被定义为非理性和自愿地延迟必要的任务，它是普遍存在的并且具有临床相关性。它在大学生中的高患病率给受影响者的心理健康和福祉带来了严重后果。正确治疗的研究仍然相对较少，首选治疗似乎是认知行为疗法（CBT）。本研究的目的是评估基于 CBT 的基于互联网和移动设备的拖延干预 (IMI) 对大学生的有效性和可接受性。方法 将进行一项双组随机对照试验，计算样本量为 N = 120 名有拖延行为问题的参与者。在 StudiCare 框架内，德国、奥地利和瑞士将通过 15 多所合作大学的循环电子邮件招募学生，StudiCare 是一个成熟的项目，为大学生提供针对不同健康相关问题的 IMI。干预组将接受电子教练指导的为期 5 周的 IMI StudiCare 拖延疗法。等待名单对照组将在随机分组后 12 周获得无指导 IMI 的访问权。评估将在随机分组之前以及随机分组之后 6 周和 12 周进行。主要结果是拖延，通过非理性拖延量表（IPS）来衡量。次要结果包括对诱惑的敏感性、抑郁、焦虑、幸福感和自我效能，以及干预满意度、依从性和潜在副作用等可接受性方面。此外，还将探索性地检查几个潜在的调节因素以及潜在的调节因素的自我效能感和对诱惑的敏感性。数据分析将在意向治疗的基础上进行。 讨论 这项研究将有助于提供有关通过互联网提供的拖延症干预措施的有效性和可接受性的证据。如果它被证明是有效的，StudiCare 拖延症可以提供一种低门槛、经济高效的方式来帮助众多遭受拖延症困扰的学生。试验注册：该试验通过德国临床研究试验注册中心（DRKS）在世界卫生组织国际临床试验注册平台上注册：DRKS00014321（注册日期：2018年4月6日）。如果有重要的方案修改，试验注册将会更新。试验状态：这是2019年12月11日的协议版本1。招募于2018年4月9日开始，并于2018年11月30日完成。评估和干预仍在进行中，将于2019年4月完成。