Perhaps no single piece of research is more fundamental to the creation of WriterKEY than, The Power of Feedback, by John Hattie and Helen Temperley. We wish we could reproduce the article and republish it here, but we cannot. Please make the effort
to find it on the Internet or through Sage publishing.
This article provides a conceptual analysis of feedback and reviews the evidence related to its impact on learning and achievement. This evidence shows that although feedback is among the major influences, the type of feedback and the way it is given
can be differentially effective. A model of feedback is then proposed that identifies the particular properties and circumstances that make it effective, and some typically thorny issues are discussed, including the timing of feedback and the effects
of positive and negative feedback. Finally, this analysis is used to suggest ways in which feedback can be used to enhance its effectiveness in classrooms.
Hattie, J., & Timperley, H. (2007). The Power of Feedback. Review of Educational Research, 77(1), 81-112