Font size | Symbol area as % of 8” × 10” ad (%) | Positive recall with high contrast (%) | Positive recall with low contrast (%) |
---|---|---|---|
8 | 1.4 | 58.3 | 53.7 |
10 | 2.2 | 62.9 | 58.4 |
12 | 3.2 | 66.5 | 62.2 |
14 | 4.3 | 69.4 | 65.2 |
16 | 5.6 | 71.8 | 67.8 |
18 | 7.1 | 73.8 | 70.0 |
20 | 8.8 | 75.5 | 71.9 |
24 | 12.7 | 78.3 | 74.9 |
26 | 14.9 | 79.5 | 76.2 |
28 | 17.2 | 80.5 | 77.3 |
30 | 19.8 | 81.4 | 78.4 |
34 | 25.4 | 83.0 | 80.1 |
40 | 35.2 | 84.9 | 82.3 |
48 | 50.6 | 86.8 | 84.5 |