Table 2.
Factor analysis
| Factor | Factor 1 | Factor 2 |
|---|---|---|
| Eigenvalue | 7.938 | 2.656 |
| Variance explained | 56.701 | 18.969 |
| AAT written word-picture matching | 0.903 | 0.187 |
| Boston Naming Test | 0.921 | 0.100 |
| AAT auditory word-picture matching | 0.889 | 0.132 |
| PPT | 0.873 | 0.163 |
| PALPA auditory word-picture matching | 0.859 | 0.051 |
| Object Decision A hard | 0.794 | 0.156 |
| PALPA associative-semantic task | 0.739 | 0.371 |
| Object Decision B Easy | 0.729 | 0.288 |
| AAT written sentence-picture matching | 0.565 | 0.568 |
| AAT auditory sentence-picture matching | 0.592 | 0.394 |
| PALPA pseudoword repetition | 0.134 | 0.912 |
| AAT repetition | 0.047 | 0.863 |
| CPM | 0.174 | 0.799 |
| PALPA word repetition | 0.247 | 0.774 |
The neuropsychological test score loadings onto two factors, a naming and comprehension factor (Factor 1) and a repetition factor (Factor 2) are listed in Column 1 and 2, respectively. Loadings >0.70 are indicated in bold.
AAT = Aachen aphasia test; CPM = Coloured Progressive Matrices; PPT = Pyramids and Palm Trees test.