1. A review of selected parts of the research literature referring to this topic and related work on reliability has been performed by a member of the project team, Caroline Morrow‐Brown. This review is entitled Summary of Research into Sources of Grade Variation in Examinations and Other Forms of Assessment. (It may be obtained from the Student Assessment Research Group at the Open University.)
2. A STUDY OF THE RELIABILITY OF TUTOR MARKED ASSIGNMENTS AT THE OPEN UNIVERSITY