Possible answers for the nine questions about testing/assessment which were in the March 2007 issue of this newsletter appear below. |
Further reading: Bodner, G. (n.d.). Statistical Analysis of Multiple Choice Exams. Retrieved April 5, 2007 from http://chemed.chem.purdue.edu/chemed/stats.html |
Further reading: Mousavi, S.A. (2002). An Encyclopedic Dictionary of Language Testing. (3rd Ed.). Taipei: Tung Hua Book Company. p. 476-477. |
Further reading: Lohninger, H. (2006). Fundamentals of Statistics: Coefficient of Variation. Retrieved April 5, 2007 from http://www.statistics4u.info/fundstat_eng/cc_coeff_variation.html Wikipedia. (2007). Coefficient of Variation. Retrieved April 5, 2007 from http://en.wikipedia.org/wiki/Coefficient_of_variation |
Further reading: Steiner, A. (2005). Investment Performance Analysis - Skewness. Retrieved April 6, 2007 from http://www.andreassteiner.net/performanceanalysis/?Risk_Measurement:Return_Distributions:Skewness Weisstein, E. W. (n.d.). Bowley Skewness. Retrieved April 6, 2007 from http://mathworld.wolfram.com/BowleySkewness.html |
Further reading: Calkins, K. G. (2005). An Introduction to Statistics - Lesson 6: The Bell-shaped, Normal, Gaussian Distribution. Retrieved April 5, 2007 from http://www.andrews.edu/~calkins/math/webtexts/stat06.htm |
Stanine Score | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Sample Ranking | 4% | 7% | 12% | 17% | 20% | 17% | 12% | 7% | 4% |
Further reading: Azzolino, A. (2005). MIDDLE GROUND: Stanine - Statistical Standard Nine Normal Distribution. Retrieved April 5, 2007 from http://www.mathnstuff.com/math/spoken/here/2class/90/stanine.htm |
Further reading: Baranowski, M. (2002, June 26). Statistical Analysis of Field Project #1. Retrieved April 7, 2007 from http://www.ling.upenn.edu/courses/Summer_2002/ling102/chisq.html Connor-Linton, J. (2003, March 22). Chi Square Tutorial. Retrieved April 7, 2007 http://www.georgetown.edu/faculty/ballc/webtools/web_chi_tut.html Ryan, J. (n.d.). The Chi Square Statistic. Retrieved April 7, 2007 http://math.hws.edu/javamath/ryan/ChiSquare.html |
Further reading: Wikipedia. (2007). Coefficient of determination. Retrieved April 7, 2007 from http://en.wikipedia.org/wiki/Coefficient_of_determination |
Further reading: Varma, S. (2006). Preliminary Item Statistics Using Point-Biserial Correlation and P-values. Retrieved April 8, 2007 from http://www.eddata.com/resources/publications/EDS_Point_Biserial.pdf |
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