The measurement of primary traits in second language oral proficiency in second language acquisition research

这项研究将有助于为国际ESL（英语作为第二语言）学生和在澳大利亚大学学习日语或西班牙语作为第二语言的学生提供高质量的学习成果。提高当前第二语言教学法的有效性将来自于对关键语言特征（句法复杂性、词汇范围、准确性和流利性）在达到高级熟练程度中所起作用的更深入理解。

The proposed research will help to inform high-quality learning outcomes for international ESL (English as a Second Language) students and students who study Japanese or Spanish as a second language in Australian universities. Improved effectiveness in current second language teaching pedagogy will result from a deeper understanding of the role that the key language traits (syntactic complexity, lexical range, accuracy and fluency) play in the attainment of advanced proficiency.