Figures & data
Figure 1. Illustration of a Q-matrix of 4items by 4 sub-skills.
Table 1. Descriptive statistics of the items
Figure 2. Variable maps of the data.
Table 2. Item parameters estimated by RUM in round one
Table 3. Item parameters estimated by RUM in round two
Figure 3. Learners’ estimated general ability against their model-expected values.
Figure 4. Proportion of masters vs non-masters per each item.
Table 4. Proportion of masters and non-masters, Cohen’s Kappa, and TRC
Table 5. Number of correct patterns MISclassified by number of sub-skills
Table 6. Average ability scores of learners on the defined sub-skills
Appendix A. Selected Prompts
Appendix B. The First EDD Checklist Applied to Assess Students’ Essays
Appendix C. The modified version of Kim’s (2011) EDD Writing Checklist for the EFL context