Effects of Introducing Classroom Performance Assessments on Student Learning Share Close Share Why is Facebook not here? Why is Twitter not here? Share on LinkedIn Share on Google Plus Permalink Email R. J. Flexer, T. J. Weston, S. F. Marion, V. Mayfield, and E. H. Hiebert January 1, 1996 Publisher Educational Measurement: Issues and Practice, 15 Page Numbers 7-18