Argues that, to deal effectively with sentence errors of basic writers, it is crucial to distinguish between what should be left alone and what can be productively marked and how it should be marked. Proposes a taxonomy of four sources of errors (knowledge, dialect, process, and developmental errors) and seven ways to address them. (SR)

Compares the quality and syntactic complexity of 2 types of essays written by 44 college freshmen in a basic writing course. Essays dealing with group-phenomenon events (intensification) had more words per clause, but received lower quality scores than essays dealing with individually experienced events (initiation). (PAA)