This article reviews a purposive sample of 16 doctoral dissertations in second language (L2) education, completed between 2014 and 2018 and published in German, in Germany. Among the 103 relevant dissertations found from this period, a total of 12 thematic strands were identified, of which five were chosen as being particularly common and thus warranting a more in-depth review: (1) learning and teaching about culture in the language classroom, (2) literary texts in L2 education, (3) bilingual models of learning and teaching, (4) plurilingual teaching and learning, and (5) language teacher education and teacher training. We identify relevant topics and relate these to trends in research methodology (qualitative/quantitative/mixed-methods). We also discuss the depth and breadth of these dissertations and situate their scholarly contributions within German and international research on language education.

中文翻译：

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德国语言教育博士研究回顾（2014-2018）

本文回顾了 2014 年至 2018 年间完成并在德国以德语发表的 16 篇第二语言 (L2) 教育博士论文的有目的样本。在这一时期发现的 103 篇相关论文中，共确定了 12 条主题链，其中有 5 条被认为是特别常见的，因此需要进行更深入的审查：（1）语言课堂中的文化学习与教学, (2) L2 教育中的文学文本, (3) 双语教学模式, (4) 多语教学, (5) 语言教师教育和教师培训。我们确定相关主题并将其与研究方法（定性/定量/混合方法）的趋势联系起来。