There are several ways to think about error in writing in light of what we know about second language acquisition and what we know about how texts, context and the writing process interact with one another. As mentioned, students writing in a second language generally produce texts that contain varying degrees of grammatical and rhetorical errors. In fact, depending on proficiency level, the more content-rich and creative the text, the greater the possibility there is for errors at the morphosyntactic level. These kinds of errors are especially common among L2 writers who have a lot of ideas, but not enough language to express what they want to say in a comprehensible way. What we classify as an error, which is associated with learner competence, may actually be a mistake, or more specifically in an EAP context, a "derailment" related to learner performance (Shaughnessy, 1977). These "derailments" occur when students attempt to use the academic voice and make their sentences more intricate, especially when the task requires more complex ideas.