Cruise Scientific                Visual Statistics Studio

  Theory of Measurement

 

 

 

 

 

 

 

 

 

 

 

 

 

ERROR VARIANCE

Krus, D. J. & Kennedy, P. H. (1981) The misplaced illusion? The case of the Mueller-Lyer perceptual incongruity figure. Educational and Psychological Measurement, 41, 175-180.
 

THEORY OF TRUE AND ERROR SCORES

Krus, D.J., & Fuller, E.A. (1982) Illustration of theory of true and error scores on idealized data sets.  Educational and Psychological Measurement, 42, 837-841.


RELIABILITY

Krus, D. J., & Helmstadter, G. C. (1993) The problem of negative reliabilities. Educational and Psychological Measurement, 53, 643-650.

Krus, D. J., & Helmstadter, G. C. (1987) The relationship between correlational and internal consistency notions of test reliability. Educational and Psychological Measurement, 47, 911-915.

Krus, D. J. (2006) Reliability and Homogeneity. Journal of Visual Statistics, 6, (August, 2006).



ITEM ANALYSIS

Krus, D. J. (2001) Item analysis. Journal of Visual Statistics, 2, (April, 2002).

Krus, D. J. & Ney, R. G. (1978) Convergent and discriminant validity in item analysis. Educational and Psychological Measurement, 38, 135-137.



TEST NORMS

Krus, D. J., & Kennedy, P. H. (1977) Lost: McCall's T scores: why? Educational and Psychological Measurement, 37, 257-261

Krus, D. J., & Ceurvorst, R. W.  (1978) Computer assisted construction of variable norms. Educational and Psychological Measurement, 38, 135-137.

Krus, D. J. & Liang, K. S. (1984) Wanted—central tendency and variability of test norms: how to recover them? Educational and Psychological Measurement, 44, 123-129.