Abstract：
This paper undertakes an analysis and discussion of the methodological challenges and insights derived from three longitudinal qualitative studies, all conducted in Chile during the COVID-19 pandemic and subject to comprehensive theoretical-methodological reflection processes centred on their respective designs. This analysis makes a significant contribution to interdisciplinary discussions within social research, with a particular emphasis on longitudinal trajectories. First, we present a comparative analysis of three studies in social work, utilising Saldaña\'s questions addressing changes and learning in longitudinal studies. The first study explores the labour trajectories of researchers, the second focuses on the educational trajectories of students, and the last examines therapeutic alliance trajectories between social workers and families within the child protection system. Following this, we delve into the methodological decisions made by the research group during the execution of these longitudinal studies. This encompasses an examination of participant involvement, temporal definitions of the adopted designs, and the most suitable methodological tools for analysing change processes over time. The outcomes of this comparative analysis reveal the distinctive characteristics of the three longitudinal studies, providing insights into how the time dimension is explored within them. We highlight key criteria essential for consideration in longitudinal qualitative research, particularly regarding participants and methodology. In conclusion, we advocate for an expanded reflection within the realm of longitudinal qualitative methodology, encompassing aspects such as design choices, approaches to data analysis, integration of technology in information processing, and strategies for maintaining participant engagement.
摘要：
本文对三个纵向定性研究得出的方法论挑战和见解进行了分析和讨论，所有这些都是在COVID-19大流行期间在智利进行的，并以各自的设计为中心进行全面的理论-方法反思。这一分析为社会研究中的跨学科讨论做出了重大贡献，特别强调纵向轨迹。首先,我们对社会工作中的三项研究进行了比较分析，利用Saldaña的问题解决纵向研究中的变化和学习。第一项研究探索了研究人员的劳动轨迹，第二个重点是学生的教育轨迹，最后研究了儿童保护系统内社会工作者和家庭之间的治疗联盟轨迹。在此之后,我们深入研究了研究小组在执行这些纵向研究期间做出的方法学决策。这包括对参与者参与的检查，所采用设计的时间定义，以及分析随时间变化的变化过程的最合适的方法工具。这种比较分析的结果揭示了三个纵向研究的独特特征，提供关于如何在其中探索时间维度的见解。我们强调了在纵向定性研究中考虑的关键标准，特别是关于参与者和方法。总之,我们主张在纵向定性方法论领域进行扩展反思，包括设计选择等方面，数据分析方法，信息处理技术的集成，以及保持参与者参与度的策略。
