The collection of articles included in this issue of the Journal of Research in Music Education address a range of topics sure to be of interest to many in the field. In the first article, Kenneth Elpus leveraged data gathered from the 2016 Arts National Assessment of Educational Progress (NAEP) to investigate the proportions of middle school students in the US who participate in music classes as well as how that varies as a function of student characteristics. The data also allowed for a comparison of NAEP music achievement test scores according to type of music class enrollment, which revealed interesting and perhaps even surprising findings. This article can serve as an excellent model for those who wish to conduct secondary analyses of large-scale data sets to investigate issues critical to music education.

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本期《音乐教育研究杂志》收录的文章集解决该领域许多人肯定会感兴趣的一系列主题。在第一篇文章中，Kenneth Elpus 利用从 2016 年全国艺术教育进步评估 (NAEP) 收集的数据来调查美国中学生参加音乐课的比例，以及该比例如何随学生特征的变化而变化. 该数据还允许根据音乐课程注册类型比较 NAEP 音乐成绩测试分数，这揭示了有趣甚至可能令人惊讶的发现。对于那些希望对大规模数据集进行二次分析以调查对音乐教育至关重要的问题的人来说，本文可以作为一个很好的模型。