Research on real-world patterns of substance use increasingly involves intensive longitudinal data (ILD) collection, requiring long assessment windows. The present study extends limited prior research examining event- and person-level influences on compliance and response consistency by investigating how these behaviors are sustained over time in an ILD study of alcohol and cannabis co-use in college students. Participants (n = 316) completed two 28-day bursts of ILD comprising five daily surveys, which included a morning survey of prior-day drinking. We used linear mixed effects models in a multilevel interrupted time series framework to evaluate the associations of time and measurement burst with (a) noncompliance (count of missed surveys) and (b) response consistency (difference between same-day report of drinking and morning report of prior-day drinking). We observed that time was positively associated with noncompliance, with no discontinuity associated with measurement burst. The slope of time was more positive in the second burst. Neither time nor measurement burst were significantly associated with consistent reporting. However, survey nonresponse and consistency of responding appeared to be impacted by the same-day use of substances. Overall, compliance decreased while consistency was stable across the duration of a lengthy ILD protocol. Shorter assessment windows or adaptive prompting strategies may improve overall study compliance. Further work examining daily burden and context is needed to inform future ILD design. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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冗长的密集纵向数据协议中的合规性和响应一致性。


对现实世界物质使用模式的研究越来越涉及密集的纵向数据（ILD）收集，需要较长的评估窗口。本研究扩展了先前有限的研究，通过调查在大学生酒精和大麻共同使用的 ILD 研究中这些行为如何随着时间的推移而持续，从而检验事件和个人层面对依从性和反应一致性的影响。参与者 (n = 316) 完成了两次为期 28 天的 ILD 突发测试，其中包括五次每日调查，其中包括前一天饮酒的早晨调查。我们在多级中断时间序列框架中使用线性混合效应模型来评估时间和测量突发与（a）不合规（错过调查的数量）和（b）响应一致性（当天饮酒报告和早晨饮酒报告之间的差异）之间的关联。前一天饮酒报告）。我们观察到时间与不合规性呈正相关，并且不存在与测量突发相关的不连续性。第二次爆发中时间斜率更加正。时间和测量突发都与一致的报告没有显着相关。然而，调查不答复和答复的一致性似乎受到当天使用物质的影响。总体而言，在漫长的 ILD 方案期间，依从性下降，而一致性则保持稳定。较短的评估窗口或适应性提示策略可能会提高整体研究依从性。需要进一步研究日常负担和背景，为未来的 ILD 设计提供信息。 （PsycInfo 数据库记录 (c) 2024 APA，保留所有权利）。