Scaling exponent (±s.e.m.) | R^{2} | F, P value | |
---|---|---|---|
Suction Index | 0.55±0.09 | 0.82 | F_{1,9}=38.7 |
P<0.001 | |||
Expanding Cone | 0.98±0.2 | 0.76 | F_{1,7}=22.6 |
P<0.001 | |||
Observed flow speed | 0.78±0.18 | 0.72 | F_{1,7}=17.8 |
P<0.005 |
Buccal pressure is expected to be proportional to flow speed squared; therefore the predicted scaling exponent for flow speed based on the Suction Index model is 0.55. Scaling exponent for both models was not significantly different from the observed one for flow speed (t-test using slope± confidence intervals; P>0.05 for both). Reported F and P values are for the null hypothesis that slope=0