Table 3.
Chi Square Analyses of Agreement on Item Pairs
| Item Description | Agreement (%) | χ2 | p | κ | Φ or OR |
|---|---|---|---|---|---|
| Receptive Language | |||||
| Listens and looks | 97.2 | .999 | −.012 | - | |
| Recognizes name | 91.7 | .007 | .358 | 16.2 | |
| Understands “no” | 93.6 | .173 | .189 | 8.4 | |
| Follows one-step instructions | 75.2 | 19.191 | < .001 | .419 | .42 |
| Recognizes 3+ body parts | 62.4 | 17.746 | < .001 | .318 | .40 |
| Follows two-step instructions | 77.1 | 16.898 | < .001 | .393 | .39 |
| Identifies pictures of named objects | 69.7 | 23.150 | < .001 | .413 | .46 |
| Expressive Language | |||||
| Names 3+ objects | 58.7 | 15.743 | < .001 | .252 | .38 |
| Names 10+ objects | 76.1 | .001 | .216 | - | |
| Fine Motor | |||||
| Turns pages in book one by one | 69.7 | .052 | .160 | 3.5 | |
| Stacks four blocks vertically | 77.1 | 29.534 | < .001 | .516 | .52 |
| Uses hand-wrist twisting motion | 82.6 | < .001 | .462 | 19.5 | |
Note. Where Chi square statistics are absent, Fisher’s Exact p-values are reported due to violations of Chi square assumptions. A significant p-value indicates significant disagreement between methods. For items using Fisher’s Exact test, an odds ratio (OR) was used as a measure of effect size, except in cases where one cell in the contingency table equaled 0.