Theoretical saturation in qualitative research: an experience report in interview with schoolchildren

ABSTRACT Objective: report the experience of applying the theoretical data saturation technique in qualitative research with schoolchildren. Method: critical reading of primary sources and compilation of raw data, followed by thematic grouping through colorimetric codification and allocation of themes/types of statements in charts to find theoretical saturation for each grouping. Results: colorimetric codification occurred according to previously established themes: bodily hydration; physical activities and play; handling of sickle-cell disease; feeding and clothing. On the eleventh interview, it was possible to reach the theoretical saturation of themes, with four additional interviews being performed. Conclusion: this experience report enabled the description of the five sequential steps for identification of theoretical data saturation in qualitative research conducted with schoolchildren.

摘要 研究目的：报告在针对学龄儿童的质性研究中应用理论数据饱和（theoretical data saturation）技术的实践经验。研究方法：对原始资料进行批判性阅读与原始数据整理，随后通过比色编码（colorimetric codification）法开展主题分组，并将主题与陈述类型归类至图表中，以明确各分组的理论数据饱和状态。研究结果：比色编码依照预先设定的主题进行，涵盖身体补水、体育活动与游戏、镰状细胞病（sickle-cell disease）管理、饮食与着装四个类别。在第11次访谈时，所有主题均达到理论数据饱和，后续又追加了4次访谈。研究结论：本次实践报告完整阐述了针对学龄儿童开展的质性研究中，识别理论数据饱和的五项递进步骤。