Table 3a.

Multiple Regressions illustrating the cross-sectional association between Average LPP Difference Scores and symptoms, Group, and the interaction of group and symptoms.

A.) Depression Regression	Beta	SE	t-value	p-value
Group	0.139	0.763	0.182	0.856
SCID Depression	−0.194	0.121	−1.599	0.114
Group x Depression	−0.661	0.242	−2.732	0.008
B.) Avolition Regression	Beta	SE	t-value	p-value
Group	−0.996	0.94	−1.06	0.293
SANS Avolition	−0.11	0.057	−1.942	0.056
Group x Avolition	−0.251	0.113	−2.218	0.03
C.) Inexpressivity Regression	Beta	SE	t-value	p-value
Group	−0.6	0.856	−0.701	0.486
SANS Inexpressivity	−0.168	0.085	−1.973	0.053
Group x Inexpressivity	−0.331	0.171	−1.941	0.056
D.) Disorganization Regression	Beta	SE	t-value	p-value
Group	−0.247	0.845	−0.292	0.771
SAPS Disorganization	−0.129	0.11	−1.178	0.243
Group x Disorganization	−0.189	0.219	−0.86	0.393
E.) Reality Distortion Regression	Beta	SE	t-value	p-value
Group	−0.583	0.788	−0.739	0.462
SAPS Reality Distortion	−0.267	0.084	−3.178	0.002
Group x Reality Distortion	−0.426	0.168	−2.537	0.013

Group was coded: 0.5 for schizophrenia and -0.5 for affective psychosis.