Table 4.

Study 2: Discriminant Analysis Coefficients for Prediction of Diagnosis

Predictor	Correlation coefficient	Standardized coefficientsa
Home Diurnal sAA Times
Waking	.321	.837
30 min + Waking	.043	-.351
Afternoon	-.115	.346
Evening	-.101	-.246
Laboratory Measures
Afternoon sAA	-.183	-.789
Tonic pupil size	.678	.910

Note. sAA = salivary alpha-amylase; Waking sAA = sAA taken across two testing days upon waking; 30 min + Waking sAA = sAA taken across two testing days 30 minutes after waking time; Afternoon sAA = sAA taken across two testing days at 11:50 am; Evening sAA = sAA taken across two testing days at 4:50 pm; Laboratory sAA = sAA taken during one afternoon laboratory session; Tonic pupil size = baseline measure of pupil size taken during one afternoon laboratory session.

^aStandardized canonical discriminant function coefficients.