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This table reports the correlation matrix among the five final predictor.
| Feature | Number of errors | Prompted-firstdigit adjusted GULPEASE | Firstdigit-enter | Writing time | Time key before enter down | Feature |
|---|---|---|---|---|---|---|
| Number of errors | 1.00 | 0.51 | 0.25 | 0.46 | 0.44 | 1.00 |
| Prompted-firstdigit adjusted GULPEASE | 0.51 | 1.00 | 0.66 | 0.60 | 0.54 | 0.51 |
| Firstdigit-enter | 0.25 | 0.66 | 1.00 | 0.67 | 0.52 | 0.25 |
| Writing time | 0.46 | 0.60 | 0.67 | 1.00 | 0.67 | 0.46 |
| Time key before enter down | 0.44 | 0.54 | 0.52 | 0.67 | 1.00 | 0.44 |
