4Bachman, L. &A. Palmer. 2010. Language Assessment in the Real World : Developing Lan- guage Tests and Justifying Their Use [M]. Oxford: OUP.
5Bloomfield. L. 1933. Language [M]. New York: Holt.
6Bond, T. & C. Fox. 2001. Applying the Rasch Model : Fundamental Measurement in the Human Sciences [M]. Mahwah, N.J.. Lawrence Erlbatma Associates.
7Elder, C., U. Knoch, G. Barkhuizen&J. von Randow. 2005. Individual feedback to en- hance rater training: Does it work? [J]. Language Assessment Quarterly 2: 175-196.
8Engelhard, G. 1992. The measurement of writing ability with a Many-Faceted Rasch Model [J]. Applied Measurement in Education 5: 171-191.
9Knoch, U. 2011. Investigating the effectiveness of individualized feedback to rating behav- ior: A longitudinal study [J]. Language Testing 28 :179-200.
10Lado, R. 1961. Language Testing: The Construction and Use of Foreign Language Tests [M]. London. Longman.