Table 3 Learner response data analysis by CTT
From: On the usefulness of CDA-based score reporting: implications for self-regulated learning
No. of items | Mean difficulty | Mean discrimination | Measurement error | Examinees |
|---|---|---|---|---|
35 | 0.636 | 0.389 | 2.486 | 474 |
Mean score | Standard deviation | Min. score | Max. score | Median |
22.276 | 5.982 | 4 | 34 | 23 |