Table 1.

F-test and p-value of the race term comparing the fourth degree polynomial regression model of each vocal tract structure for each sex (AR vs WR).

	Males	Females
VT Length	F(1,268)=1.3697, p=0.243	F(1,207)=0.0069, p=0.934
VT-Vertical	F(1,271)=0.2590, p=0.611	F(1,211)=0.2561, p=0.613
VT-Horizontal	F(1,308)=0.3335, p=0.564	F(1,247)=0.0302, p=0.862
Naso-oropharyngeal length	F(1,300)=0.5944, p=0.441	F(1,232)=0.2220, p=0.638
Oropharyngeal width	F(1,275)=1.1600, p=0.282	F(1,212)=0.0481, p=0.827