Table 5. Descriptive statistics for each readability test.
*Multiple modes exist. The smallest value is shown.
ARI: Automated Readability Index; CLI: Coleman-Liau Index; FKGL: Flesch-Kincaid Reading Grade Level; FRES: Flesch Reading Ease Score; GFI: Gunning Fog Index; SD: standard deviation; SE: standard error; SMOG: Simple Measure of Gobbledygook
| Score | FRES | FKGL | GFI | SMOG | CLI | ARI |
| N (Valid) | 74 | 74 | 74 | 74 | 74 | 74 |
| N (Missing) | 0 | 0 | 0 | 0 | 0 | 0 |
| Mean | 56.7392 | 7.6216 | 9.2014 | 7.2946 | 13.8608 | 6.9095 |
| Median | 56.1500 | 7.3500 | 8.5500 | 6.8000 | 13.8500 | 6.8000 |
| Mode | 54.40* | 6.50* | 8.10 | 6.50 | 13.70 | 6.80 |
| SD | 8.17748 | 1.68655 | 2.09085 | 1.41159 | 1.75170 | 2.05734 |
| Skewness | -0.167 | 1.059 | 1.211 | 1.464 | 0.409 | 1.244 |
| SE of skewness | 0.279 | 0.279 | 0.279 | 0.279 | 0.279 | 0.279 |