Table 3.
Results of t-tests (p-values) comparing Categorization Amplitude and Slope between adjacent ages. P-values are controlled for False Discovery Rate. –: p>.1. Italics: marginal significance. T-tests have 47 d.f. except where indicated in parenthesis; missing data is due to poor fits for one or more subjects at this time.
| Stop Voicing | Fricative Place | |||||||
|---|---|---|---|---|---|---|---|---|
| 7–8 vs. 12–13 | 12–13 vs. 17–18 | 7–8 vs. 12–13 | 12–13 vs. 17–18 | |||||
| Time | Amp | Slope | Amp | Slope | Amp | Slope | Amp | Slope |
| 500 | 0.0101 (43) | 0.010 (43) | 0.0017 (46) | 0.097 (46) | - (38) | - (38) | - (38) | - (38) |
| 600 | <.0001 (46) | 0.0003 (46) | 0.0015 | - | 0.057 (36) | 0.052 (36) | - (38) | - (38) |
| 700 | <.0001 | <.0001 | 0.0088 | - | 0.0041 (43) | 0.096 (43) | 0.058 (46) | - (46) |
| 800 | <.0001 | <.0001 | 0.052 | - | 0.0006 (45) | - (45) | 0.052 | - |
| 900 | 0.0001 | 0.0013 | - | - | 0.0007 | - | 0.062 | - |
| 1000 | 0.0003 | 0.0074 | - | - | 0.0007 | - | 0.078 | - |
| 1200 | 0.0029 | 0.038 | - | - | 0.013 | 0.023 | - | - |
| 1400 | 0.012 | 0.032 | - | - | 0.030 | 0.022 | - | - |