summary.monotonicity.class {mokken} | R Documentation |
S3 Method for summary
of objects of class monotonicity.class.
Summarizes checks of monotonicity
## S3 method for class 'monotonicity.class': summary(object, ...)
object |
list produced by check.monotonicity |
... |
Optional parameters will be ignored |
Matrix with ncol(X)
rows and 9 columns,
showing for each item a summary of the violations of monotonicity
L. A. van der Ark a.vdark@uvt.nl
Mokken, R. J. (1971) A Theory and Procedure of Scale Analysis. Berlin, Germany: De Gruyter.
Molenaar, I.W. and Sijtsma, K. (2000) User's Manual MSP5 for Windows [Software manual]. Groningen, The Netherlands: IEC ProGAMMA.
Sijtsma, K, and Molenaar, I. W. (2002) Introduction to nonparametric item response theory. Thousand Oaks, CA: Sage.
Van der Ark, L. A. (2007). Mokken scale analysis in R. Journal of Statistical Software. http://www.jstatsoft.org
check.monotonicity
, plot.monotonicity.class
data(acl) Communality <- acl[,1:10] monotonicity.list <- check.monotonicity(Communality) plot(monotonicity.list) summary(monotonicity.list)