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Recall lay letter readability metrics
| Initial | Revised | |
|---|---|---|
| Automated readability index | 12.0 | 5.4 |
| Coleman-Liau index | 15.4 | 7.7 |
| Gunning fog index | 11.3 | 9.2 |
| Flesch-Kincaid grade level | 12.4 | 6.1 |
| Flesch-Kincaid reading ease | 30.1 | 73.1 |
| Simple measure of gobbledygook | 12.5 | 10.1 |
| Mean (95% confidence interval)∗ | 12.7 (11.0-14.5) | 7.7 (5.5-9.9) |
Mean was calculated by summing the scores of all metrics except Flesh-Kincaid reading ease and dividing by 5.
