The article discusses the potential of combining learner corpus research with experimental studies in order to fine-tune the understanding of learner language development. It illustrates the complementarity of the two methodological approaches with data from an ongoing study of the acquisition of the English tense and aspect system by French…

Describes a study designed to examine native speakers' reactions to errors contained in compositions written by advanced Spanish students, as a measure of error seriousness and a guide for selective correction. Suggests that errors interfering with comprehension should be eliminated first, followed by those that elicit negative reactions from…