What started as a discussion of the efficacy of explicit grammar instruction has over time led to a debate about the need for and effectiveness of written corrective feedback (WCF) within the field of English language teaching (ELT). Dynamic written corrective feedback (DWCF) is a relatively new strategy developed by Dr. Norman Evans to provide WCF to English as a second language (ESL) students through systematic, coded feedback. While previous studies on DWCF have looked at its effects among other groups, few studies have examined DWCF in the context of ESL students studying at the graduate level. This study analyzes the linguistic accuracy and lexical and syntactic complexity of these students before and after a fourteen-week DWCF intervention.