Table 3.

Comparing closed and opened mouth versions of five basic emotional expressions.

	Closed mean	Open mean	t	Df	Sig. (2-tailed)
Kappa
Angry	0.78	0.88	−4.60	42	0.00
Disgust	0.75	0.76	−0.25	38	0.80
Fear	0.54	0.67	−4.12	35	0.00
Happy	0.92	0.95	−3.13	41	0.00
Sad	0.76	0.63	4.25	40	0.00
Proportion correct
Angry	0.84	0.90	−1.90	42	0.06
Disgust	0.76	0.84	−1.73	38	0.09
Fear	0.47	0.73	−7.47	35	0.00
Happy	0.92	0.98	−5.08	41	0.00
Sad	0.83	0.60	6.85	40	0.00