This instrument was developed by me making use of materials published in two studies by McMillan
McMillan, J. H. (2001). Secondary teachers' classroom assessment and grading practices. Educational Measurement: Issues and Practice, 20(1), 20-32. McMillan, J. H., Myran, S., & Workman, D. (2002). Elementary teachers' classroom assessment and grading practices. The Journal of Educational Research, 95(4), 203-213.
An earlier version of this was used in my 2002 PhD dissertation. Brown, G. T. L. (2002). Teachers' conceptions of assessment. (PhD--Education), University of Auckland, Retrieved from http://hdl.handle.net/2292/63