Phonetic Detail in the Perception of Ethnic Varieties of US English 307
Table 13.6 Measure Values for Multivariate Results of Canonical Discriminant
Analysis and Principal Component Analysis
Group, Variables
To t a l - S a m pl e
Standardized
Canonical
Coef¿ cients
Voic ele s s Toke n s
Eigenvector, Principal
Component
Voic e d Toke n s
Eigenvector, Principal
Component
1 2 1 2
1: 1866 –1892 (df = 1, 44)
% glottal pulsing 1.036 0.541† -0.393 0.513† 0.213
change in F0 0.375 0.428 0.622† 0.594 0.128†
vowel duration -0.519 -0.490† 0.546 0.610† -0.124
change in F1 -0.459 0.534 0.401† -0.114 0.961†
2: 1899 –1918 (df = 1, 86)
% glottal pulsing 1.030 0.617 0.360† 0.316 0.761†
pulsing duration 0.484 0.209 0.763† -0.432 0.642†
C gap duration 0.174 0.593† -0.278 0.648† 0.087
V:C ratio 0.105 0.472† -0.459 0.542† -0.037
3: 1920 –1939 (df = 1, 150)
% glottal pulsing 1.170 0.631† 0.093 0.675† 0.263
vowel duration 0.800 -0.637† 0.081 -0.593† 0.471
change in F0 -0.147 0.320 -0.698† 0.437 0.296†
change in F1 0.106 0.306 0.706† 0.035 -0.788†
4: Perception (df = 1, 150)
vowel duration 1.651 0.137 0.798† -0.518 0.440†
pulsing duration -0.920 0.581† -0.183 0.608† 0.129
% glottal pulsing 2.026 0.705† -0.278 0.593† 0.388
V:C ratio -1.298 0.385 0.502† -0.101 0.800†
5: 1966 –1986 (df = 1, 64)
% glottal pulsing 0.864 -0.349 0.795† 0.606 0.219†
vowel duration 0.492 0.487 0.388† -0.048 -0.716†
C gap duration 0.229 0.426† 0.443 0.721† 0.072
change in F0 -0.223 0.678† -0.147 -0.333† 0.659
6: Controls (df = 1, 96)
pulsing duration 0.502 -0.024 0.821† 0.532 0.503†
% glottal pulsing 0.639 0.651† 0.405 0.534† -0.449
vowel duration 0.678 -0.457 0.386† -0.459 0.558†
V:C ratio 0.205 0.606† -0.112 -0.472† -0.484
† Identi¿ es the eigenvector used for plots of component 1 X component 2