Table 5.
Intercorrelation matrices and Variance Inflation Factors (VIFs) for the orthographic (A) and semantic (B) regression models (these measures do not apply to the lexical frequency model, which has only 1 predictor).
| (A): Orthographic Regressors | Bigram Frequency | Neighborhood | Neighbor Frequency |
|---|---|---|---|
| Bigram Frequency | 1 | ||
| Neighborhood | 0.65 | 1 | |
| Neighbor Frequency | 0.56 | 0.64 | 1 |
| VIF | 1.81 | 2.17 | 1.80 |
| (B): Semantic Regressors | Concreteness | Imageability | Number of Senses | Number of Lexical Associates | Noun/Verb Ambiguity |
|---|---|---|---|---|---|
| Concreteness | 1 | ||||
| Imageability | 0.82 | 1 | |||
| Number of senses | 0.10 | 0.11 | 1 | ||
| Number of Lexical Associates | 0.03 | 0.08 | 0.28 | 1 | |
| Noun/Verb Ambiguity | 0.09 | 0.17 | −0.34 | 0.01 | 1 |
| VIF | 3.07 | 3.20 | 1.21 | 1.09 | 1.20 |