Table 4. P-values for Focal Spacing and Skullcap Comparisons.
The p-values from the two-sample, two-tailed t-tests (α = 0.05) performed on the liquefaction volumes (L.V.) and liquefaction rates (L.R.) between the focal spacing for each skullcap and between the skullcaps for each focal spacing treated at 250 kHz and 500 kHz.
| 250 kHz | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Spacing: | λ/2 v. 2λ/3 | λ/2 v. λ | 2λ/3 v. λ | Skull: | 1 v. 2 | 1 v. 3 | 2 v. 3 | ||
| Skull 1 | L.V. | 1.3E-03 | 1.4E-07 | 2.1E-06 | λ/2 | L.V. | 2.4E-04 | 1.9E-04 | 0.53 |
| L.R. | 4.4E-05 | 2.8E-03 | 9.8E-02 | L.R. | 2.8E-02 | 0.58 | 3.4E-02 | ||
| Skull 2 | L.V. | 3.8E-04 | 1.3E-06 | 1.7E-03 | 2λ/3 | L.V. | 1.1E-05 | 4.0E-05 | 0.69 |
| L.R. | 1.7E-02 | 1.5E-03 | 1.1E-02 | L.R. | 0.65 | 0.14 | 0.43 | ||
| Skull 3 | L.V. | 2.8E-02 | 3.3E-04 | 4.8E-05 | λ | L.V. | 7.7E-02 | 0.31 | 0.13 |
| L.R. | 1.9E-03 | 2.8E-03 | 4.0E-02 | L.R. | 0.29 | 0.95 | 0.27 | ||
| 500 kHz | |||||||||
| Spacing: | λ/2 v. 2λ/3 | λ/2 v. λ | 2λ/3 v. λ | Skull: | 1 v. 2 | 1 v. 3 | 2 v. 3 | ||
| Skull 1 | L.V. | 0.48 | 0.48 | 0.57 | λ/2 | L.V. | 7.0E-05 | 9.0E-05 | 0.50 |
| L.R. | 3.1E-04 | 4.8E-07 | 1.8E-06 | L.R. | 2.4E-03 | 1.9E-03 | 0.53 | ||
| Skull 2 | L.V. | 0.17 | 0.7 | 0.93 | 2λ/3 | L.V. | 4.0E-06 | 3.0E-05 | 0.67 |
| L.R. | 5.6E-07 | 1.1E-03 | 3.40E-03 | L.R. | 1.1E-05 | 4.0E-05 | 0.69 | ||
| Skull 3 | L.V. | 0.41 | 4.1E-04 | 2.6E-04 | Λ | L.V. | 0.13 | 0.29 | 0.18 |
| L.R. | 9.3E-06 | 5.6E-08 | 1.4E-06 | L.R. | 7.7E-02 | 0.31 | 0.13 | ||