In Germany, the respondents who had participated in the 2012 survey of the Programme for the International Assessment of Adult Competencies (PIAAC) were re-approached for the panel study PIAAC-L. PIAAC-L aims at investigating the longitudinal effects of skill outcomes over the life course and the development of the key skills assessed in PIAAC. Moreover, additional and alternative background information was collected and analyzed within PIAAC-L. PIAAC-L consists of three follow-up waves to the initial PIAAC 2012 survey. The present paper describes the rationale for PIAAC-L and the benefits of conducting a longitudinal PIAAC follow-up study in Germany. In addition, we outline the general design of PIAAC-L and the specific design of the three waves of data collection. Finally, we address the analytic potential of PIAAC-L data set and its availability to the scientific community.

中文翻译：

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德国PIAAC纵向研究：原理和设计

在德国，重新参加了2012年成人能力国际评估计划（PIAAC）调查的受访者参加了小组研究PIAAC-L。PIAAC-L旨在调查技能结果在整个生命过程中的纵向影响以及在PIAAC中评估的关键技能的发展。此外，在PIAAC-L中收集并分析了其他背景信息。PIAAC-L包括对PIAAC 2012初始调查的三个跟进浪潮。本文介绍了PIAAC-L的基本原理以及在德国进行PIAAC纵向跟踪研究的好处。此外，我们概述了PIAAC-L的总体设计以及三波数据收集的具体设计。最后，