Table 4. Estimated percent variance explained in CBM indicators of narrative and expository writing tasks.
| Variance Component | Number of Words | Correct Word Sequences | Incorrect Word Sequences | Incorrect Words | ||||
|---|---|---|---|---|---|---|---|---|
|
|
||||||||
| Narrative | Expository | Narrative | Expository | Narrative | Expository | Narrative | Expository | |
| Person | 61 | 57 | 69 | 63 | 59 | 56 | 57 | 51 |
| Rater | 0 | 0 | 0 | 0 | .2 | .3 | 0 | 0 |
| Task | .3 | 2 | 0 | 3 | 1 | .3 | 2 | 1.4 |
| Person × Rater | 0 | 0 | 0 | .1 | 0 | .4 | 0 | .3 |
| Person × Task | 38 | 41 | 31 | 34 | 37 | 41 | 38 | 45 |
| Rater × Task | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Residual | 0 | 0 | .5 | .5 | 2.2 | 2.3 | 3 | 2.5 |
| G coefficient | ||||||||
| Relative (G) | .83 | .81 | .87 | .85 | .82 | .80 | .81 | .77 |
| Absolute (Phi) | .83 | .80 | .87 | .84 | .82 | .80 | .81 | .76 |
Note: Relative = Relative decision; Absolute = Absolute decision