Cognitive task complexity and L2 written syntactic complexity, accuracy, lexical complexity, and fluency: A research synthesis and meta-analysis

This study, a research synthesis and quantitative meta-analysis, contributes to recent L2 writing research on task complexity and its impact on the syntactic complexity, accuracy, lexical complexity, and fluency (CALF) of written L2 production. Through a systematic analysis of task-based L2 writing research from 1998 to the present, the study aimed to better understand (a) how task complexity has been manipulated in previous research, (b) the...