Table 5.

Pearson Product-moment Correlations between tracking performance (lip and jaw) and perceptual measures of intelligibility, articulatory precision and articulatory defectiveness

	Intelligibility				Precision				Defectiveness
Tracking condition	0.3	0.6	0.9	NP	0.3	0.6	0.9	NP	0.3	0.6	0.9	NP
Best Correlation
Lip	0.40	0.80	0.80	0.10	0.30	0.75	0.90	0.08	0.42	0.75	0.89	0.15
Jaw	0.80	0.60	0.70	0.40	0.67	0.41	0.69	0.44	0.78	0.41	0.74	0.49
Target Tracker Difference
Lip	0.30	0.40	0.20	0.60	−0.20	−0.20	−0.20	−0.60	−0.30	−0.40	−0.30	−0.70
Jaw	0.60	0.30	0.20	0.50	−0.50	−0.10	−0.20	−0.60	−0.60	−0.30	−0.20	−0.60
Gain
Lip	0.40	0.80	0.80		0.39	0.75	0.90		0.43	0.80	0.86
Jaw	0.70	0.80	0.80		0.65	0.66	0.73		0.72	0.75	0.82
Phase
Lip	0.50	0.40	0.40		0.62	−0.40	−0.50		0.57	−0.40	−0.40
Jaw	0.10	0.70	0.00		−0.30	−0.60	0.00		−0.10	−0.70	0.01

Note: Significant correlations (|r| > 0.60 at α = 0.05) are underlined.