Morphological complexity (MC) is a relatively new construct in second language acquisition (SLA). After critically discussing existing approaches to calculating MC in first- and second-language acquisition research, this article presents a new operationalization of the construct, the Morphological Complexity Index (MCI). The MCI is applied in two…

The academic demands of classroom English require students to think about language structure in ways that they are not used to. Everybody "knows" much English grammar intuitively but the academic rules themselves can be difficult to articulate. This goes for punctuation, too: errors often reflect students' lack of explicit knowledge of grammatical…