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CDM (version 1.0-0)

fraction.subtraction.qmatrix: Fraction Subtraction Q-Matrix

Description

The Q-Matrix corresponding to Tatsuoka (1984) fraction subtraction data set.

Usage

data(fraction.subtraction.qmatrix)

Arguments

source

DeCarlo, L. T. (2011) On the Analysis of Fraction Subtraction Data: The DINA Model, Classification, Latent Class Sizes, and the Q-Matrix. Applied Psychological Measurement, 35, 8--26.

Details

This Q-matrix can be found in DeCarlo (2011). It is the same used by de la Torre and Douglas (2004).

References

de la Torre, J. and Douglas, J. (2004) Higher-order latent trait models for cognitive diagnosis. Psychometrika, 69, 333--353. Tatsuoka, C. (2002) Data analytic methods for latent partially ordered classification models. Journal of the Royal Statistical Society, Series C, Applied Statistics, 51, 337--350. Tatsuoka, K. (1984) Analysis of errors in fraction addition and subtraction problems. Final Report for NIE-G-81-0002, University of Illinois, Urbana-Champaign.

Examples

Run this code
##
## (1) example based on corresponding dataset see
##     fractions.subtraction.data
##

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