A Reader in Sociophonetics

Phonetic Detail in the Perception of Ethnic Varieties of US English 317

Table 13.9 Univariate Results of Canonical Discriminant Analysis

Variable F p r^2

Acoustics (df = 2, 27)

/ܭ/ F3-F2 (Z) 25.61 0.0001 0.655

/o/ F2 (Z) 16.98 0.0001 0.557

RMS Standard Deviation 11.57 0.0002 0.462

/ܭ/ F1 (Z) 4.11 0.0276 0.234

Maximum Flow Declination Rate 1.51 0.2395 0.101

RMS Initial Value 1.14 0.3361 0.078

Perception (df = 2, 27)

/o/ F2 (Hz) 11.26 0.0003 0.455

/ܭ/ F1 (Z) 5.12 0.0130 0.275

/ܭ/ F3-F2 (Z) 4.65 0.0184 0.256

Change in RMS 3.31 0.0518 0.197

/o/ F3-F1 (Z) 0.76 0.4760 0.054

Table 13.10 Multivariate Results of Canonical Discriminant Analysis

Group Squared Distance Between Means F Squared Canonical Coef¿ cients Eigenvalue

Acoustics (df = 6, 22)

AAE—ChE 31.42 21.34*

AAE—SAE 31.34 21.28*

ChE—SAE 17.25 11.72*

CAN1 0.870 6.683

CAN2 0.762 3.195†

Perception (df =5,23)

AAE—ChE 15.48 9.50*

AAE—SAE 5.76 4.21*

ChE—SAE 15.20 14.56*

CAN1 0.768 0.768 3.309

CAN2 0.473 0.473 0.896†

*p<0.01

†cumulative eigenvalue = 1.000