mokken (version 1.2)

summary.monotonicity.class: Summarize monotonicity.class objects

Description

S3 Method for summary of objects of class monotonicity.class. Summarizes checks of monotonicity

Usage

## S3 method for class 'monotonicity.class':
summary(object, ...)

Arguments

object

list produced by check.monotonicity

...

Optional parameters will be ignored

Value

• Matrix with ncol(X) rows and 9 columns, showing for each item a summary of the violations of monotonicity

References

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

See Also

check.monotonicity, plot.monotonicity.class

Examples

data(acl)
monotonicity.list <- check.monotonicity(acl[,1:10])
plot(monotonicity.list)
summary(monotonicity.list)