Over the past 40 years, second language educators and assessors have come to the realization that investigating the process of writing can shed light on language teaching, learning and assessment practices (Odendahl & Deane, 2018). What L2 writers do and think while writing can provide links between the task, the related construct and the…

Research investigating corpora of English learners' language raises new questions about how syntactic complexity is defined theoretically and operationally for second language (L2) writing assessment. I show that syntactic complexity is important in construct definitions and L2 writing rating scales as well as in L2 writing research. I describe…