Tatsuoka's fraction subtraction data
Fraction Subtraction data (Tatsuoka, 2002) consists of responses of 536 examinees to 20 items measuring 8 attributes.
frac20
A list of responses and Q-matrix with components:
datresponses of 536 examinees to 20 items
QThe 20 \times 8 Q-matrix
Wenchao Ma, The University of Alabama, wenchao.ma@ua.edu
Ma, W., & de la Torre, J. (2020). GDINA: An R Package for Cognitive Diagnosis Modeling. Journal of Statistical Software, 93(14), 1-26.
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.
## Not run: mod1 <- GDINA(frac20$dat,frac20$Q,model="DINA") mod1 summary(mod1) # Higher order model mod2 <- GDINA(frac20$dat,frac20$Q,model="DINA",att.dist="higher.order") mod2 anova(mod1,mod2) ## End(Not run)
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