The purpose of this study was to create and validate a measure for jazz theory knowledge assessment. The Jazz Theory Measure (JTM) was created by exploring publications on jazz improvisation instruction and research studies that utilized jazz theory as a significant aspect of the study (i.e., dependent variable, independent variable, data collection). Latent jazz theory components (i.e., Key Knowledge, Scale Knowledge, and Chord Knowledge) were identified from an exploration of the literature and each was paired with several subtests. Items representing the JTM (N = 60) demonstrate significant representation of the jazz theory components through alpha reliability (.98), and confirmatory factor analysis (standardized root mean square residual [SRMR] = .0327, comparative fit index [CFI] = .930, Tucker–Lewis index [TLI] = .907) providing support for the JTM as a valid and reliable measure of jazz theory knowledge. Further analysis suggests that music educators providing instruction in jazz improvisation should focus on building a foundation of jazz theory in the first 5 years of jazz instruction.

这项研究的目的是创建和验证一种用于爵士理论知识评估的方法。爵士理论量度（JTM）是通过探索有关爵士即兴指导和研究的出版物而创建的，这些出版物将爵士理论作为研究的重要方面（即因变量，自变量，数据收集）。潜在的爵士乐理论成分（例如，关键知识，音阶知识和和弦知识）是通过文献研究确定的，并且每个都与几个子测验配对。代表JTM（N = 60）通过alpha可靠性（.98）和验证性因子分析（标准均方根残差[SRMR] = .0327，比较拟合指数[CFI] = .930，塔克-刘易斯指数）证明了爵士理论成分的显着表现[TLI] = .907）为JTM提供支持，以此作为对爵士理论知识的有效而可靠的衡量。进一步的分析表明，在爵士即兴演奏中提供指导的音乐教育者应着重在爵士指导的头五年中建立爵士理论的基础。