Maria Cardelle’s scientific contributions

This study assessed the effects on second language learning of variations in homework written feedback that either suppressed student errors or made them salient. Eighty students from two college Spanish courses were randomly assigned to treatment groups for a six-week period. Performance data were collected before and after treatment, as well as from homework during treatment. Analysis of variance blocking on pretest revealed significant achievement increases for treated students independent of course membership. Planned comparisons pooled across courses showed achievement was consistently superior under salient error conditions and in particular with constructively critical feedback. Results support the notion that the written performance of students learning a second language can benefit most by focusing on homework errors in a motivationally favorable manner. Relevance of the findings for instructional theory and second language teaching are discussed.