Table 3.

Discriminating speech parameters.

Parameters	Wilks’ Lambda	Structure Matrix		Standardized discriminant function coefficient
		Function 1	Function 2	Function 1	Function 2
P AVQI TILT dB	0.185	0.021	0.331	0.350	0.923
R BE 1000–1250 Hz	0.174	− 0.052	0.233	− 1.429	0.368
R BE 750–1000 Hz	0.209	0.137	0.236	1.801	0.308
R rPVI	0.158	0.182	0.270	0.608	0.551
R BE 3750–4000 Hz	0.144	0.213	− 0.173	0.469	− 0.301
R AVQI CPPS	0.217	0.194	− 0.236	1.532	− 0.796
P B3 SD	0.139	− 0.006	0.007	0.047	0.588
R AVQI JITTER ABS	0.168	− 0.101	0.079	1.231	− 0.150
R F4	0.164	0.215	0.054	0.723	0.050
P Average Syllable Duration	0.146	0.013	0.221	− 0.533	0.533
P BE 3250–3500 Hz	0.141	− 0.115	− 0.003	− 0.541	0.066
P TrajIntraZ	0.142	0.169	0.109	0.465	0.320

Parameters starting with R correspond to the reading task, and those starting with P, to the Parcheesi task.