TABLE 1.
Rotated Component Matrix Obtained With Principal Component Analysis of the Semiautomated Psycholinguistic Measurements on all 38 Picture Description Samples*
| Variable | Component
|
|||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Length† | Hesitancy | Empty Content | Grammaticality | |
| Pause-to-word ratio | −0.148 | 0.803 | 0.132 | −0.020 |
| Fundamental frequency variance | 0.042 | −0.162 | −0.075 | 0.798 |
| POS perplexity | −0.041 | 0.380 | 0.279 | 0.726 |
| Word perplexity | −0.407 | 0.529 | 0.024 | 0.213 |
| Pronoun-to-noun ratio | 0.108 | −0.375 | 0.729 | 0.223 |
| Word count | 0.932 | 0.002 | 0.000 | 0.126 |
| Speech duration (ms) | 0.864 | −0.063 | −0.027 | 0.245 |
| Mean prosodic Phrase length | −0.498 | −0.550 | −0.013 | 0.006 |
| Correct Information unit count | 0.726 | 0.053 | −0.390 | −0.217 |
| Long pause count | −0.322 | 0.288 | 0.844 | −0.135 |
| Filled pause count | 0.195 | 0.651 | 0.143 | 0.206 |
| Pause count | −0.182 | 0.426 | 0.830 | −0.158 |
| False start count | 0.329 | 0.368 | 0.427 | 0.248 |
| Pause-to-word ratio | 0.181 | 0.403 | −0.091 | 0.650 |
Extraction Method: Principal Component Analysis.
Rotation Method: Varimax with Kaiser Normalization.
*
Rotation converged in 7 iterations.
†
Coefficients in bold represent the items used in subjective labeling of components with values exceeding 0.6.