In response to calls for an assessment tool that provides a separate performance dimension from the linguistic quality-oriented measures of complexity, accuracy, and fluency (CAF) and guided by systemic functional linguistic (SFL) theories, this study introduces a set of fine-grained objective measures of communication/content/function (CCF)-related performance in second language (L2) narratives and empirically tests the validity of these measures using vigorous research procedures and statistical tests. The test results show that these CCF measures assessed their intended SFL functional dimensions, in contrast to the key CAF measures that evaluated mainly linguistic dimensions of narrative performance. More specifically, these CCF measures offered an objective evaluation of the communication/content quality of narrative task performance as evaluated by the subjective functional adequacy scales, while the key CAF measures provided an objective assessment of the linguistic quality of task performance as measured by the largely subjective International English Language Testing System (IELTS) scales. The study also discusses the implications of the results for making the assessment of L2 task performance more accurate and comprehensive.

中文翻译：

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引入/测试新的 SFL 启发的沟通/内容/功能为中心的措施，用于评估 L2 叙事任务表现

为了响应对评估工具的需求，该工具提供独立于以语言质量为导向的复杂性、准确性和流畅性衡量标准（CAF）的绩效维度，并以系统功能语言学（SFL）理论为指导，本研究引入了一系列精细的对第二语言（L2）叙事中与沟通/内容/功能（CCF）相关的表现进行细致的客观测量，并使用严格的研究程序和统计测试来实证检验这些测量的有效性。测试结果表明，这些 CCF 指标评估了其预期的 SFL 功能维度，而 CAF 指标主要评估叙事表现的语言维度。更具体地说，这些 CCF 措施提供了对叙事任务表现的沟通/内容质量的客观评估，通过主观功能充分性量表进行评估，而关键的 CAF 措施提供了对任务表现的语言质量的客观评估，通过很大程度上衡量主观国际英语语言测试系统（雅思）量表。该研究还讨论了结果对于使 L2 任务表现评估更加准确和全面的影响。