Table 5 Binomial effect size displays of correctness in the usage of punctuation marks
Punctuation marks | Cohen’s d | r | Exp | Contr |
|---|---|---|---|---|
Period (questions and exclamations) | 0.80 | 0.37 | 68.6 | 31.4 |
Period (shortenings) | 0.90 | 0.41 | 70.5 | 29.5 |
Period (sentence structure) | 1.00 | 0.45 | 72.4 | 27.6 |
Colon | 1.10 | 0.48 | 74.1 | 25.9 |
Comma (grammatical errors) | 1.30 | 0.54 | 77.2 | 22.8 |
Comma (avoid ambiguity.) | 1.40 | 0.57 | 78.7 | 21.3 |