The Impact of Feedback and Explicit Rhetorical Instruction on EFL Students’ Writing Proficiency in Higher Education

espanolAunque la eficacia del feedback sobre la competencia escrita de los estudiantes de una lengua extranjera ha sido ampliamente analizada y ha suscitado una gran controversia entre defensores y detractores, todavia es posible investigar en mayor profundidad como puede integrarse en el proceso de aprendizaje para mejorar la produccion escrita del alumnado. Este articulo demuestra las ventajas de combinar el feedback con la instruccion explicita de las convenciones retoricas para mejorar la competencia escrita del alumnado en el contexto de la educacion superior. En un estudio longitudinal de la produccion escrita de cuatro grupos de estudiantes se investigaron tres variables: el efecto del feedback, el efecto de la instruccion explicita y la combinacion de ambos, junto con un grupo de control que no recibio tratamiento. Los alumnos fueron asignados a cada grupo en base a la asistencia y a las tareas realizadas y se compararon los resultados de los analisis de la produccion escrita de cada grupo, los cuales confirman que el grupo que recibio un tratamiento combinado obtuvo mejores notas y demostro un mayor dominio de las microdestrezas. Ademas, se demostro que ni el feedback ni la instruccion explicita por separado son tan eficaces para mejorar la competencia escrita como la combinacion de ambos. EnglishThe efficacy of feedback on EFL students’ writing proficiency has been researched extensively and has also sparked off considerable controversy among detractors and supporters alike. However, there is still room for further investigation on how feedback can better contribute to students’ writing performance and how it can be fully integrated into the learning process. This article empirically demonstrates the learning advantages of combining both feedback and explicit rhetorical instruction for improving EFL students’ writing skills in the context of higher education. In a longitudinal study of the rhetorical competence of students’ written production carried out over a semester, three treatment variables were investigated: the effect of feedback, the effect of explicit instruction and the combination of both, along with a control condition of no treatment at all. Students were allocated to a treatment group on the basis of their attendance and work profile and the results of the analysis of the written production of each group were compared. The findings confirm not only that the group that received the combined treatment achieved higher grades and displayed a better control of relevant microskills in their written production, but also that neither feedback nor explicit instruction alone proved as effective in terms of rhetorical competence as the combination of the two variables.