Table 2.

Correlations of SIS Scales and SIS Genetic Factor Scales

	SIS Genetic Factor Scale
SIS Scale (r)	Paranoid Fears	Interpersonal Deficits	Perceptual Distortions	Constricted Affect	Eccentric Behavior	Unusual Beliefs
Social Anxiety	0.94	0.10	−0.08	0.22	−0.23	0.08
Pathological Jealousy	0.91	0.38	0.09	−0.01	0.04	0.27
Sensitivity	0.87	−0.03	−0.28	−0.25	−0.03	0.27
Psychotic-like Phenomena*	0.86	0.15	−0.49	−0.11	0.01	0.15
Ideas of Reference: Remarks*	0.76	−0.01	0.09	−0.07	−0.44	0.30
Introversion	0.72	0.22	−0.21	0.56	−0.24	−0.10
Suspiciousness*	0.60	0.53	0.23	−0.38	−0.05	0.25
Ideas of Reference: Watched*	0.58	0.46	0.25	−0.04	−0.39	0.58
Organization of Speech/Thought†	0.30	1.00	−0.28	0.13	0.03	−0.07
Rapport†	−0.03	0.93	0.10	0.22	−0.20	0.23
Affect†	0.03	0.73	0.21	0.49	−0.08	0.15
Social/Interpersonal Functioning†	0.38	0.70	0.13	0.45	−0.16	0.28
Irritability†	0.07	0.67	−0.05	0.04	−0.17	−0.10
Guardedness†	0.07	0.62	−0.27	−0.06	0.04	0.15
Social Isolation	0.42	0.55	0.34	0.38	0.32	0.21
Sexual Anhedonia	0.04	0.11	−0.87	0.21	0.10	<0.01
Illusions*	0.47	−0.04	−0.76	−0.48	−0.16	0.21
Restricted Emotion	−0.14	0.47	−0.12	0.91	−0.17	0.02
Odd/Eccentric Behavior†*	0.32	0.28	0.03	0.19	−0.92	0.09
Anger to Perceived Slights	0.57	0.03	−0.08	0.32	0.04	0.83
Magical Thinking*	0.36	0.29	−0.33	−0.32	−0.18	0.68
Eigenvalues	9.70	4.48	2.21	1.77	1.27	1.05

Note: Sample is unaffected pedigree members (n = 480). Covariates are age and sex. Boldface: r ≥ |.40|.

^*Dichotomized scale: symptoms absent = 0, present = 1.

^†Interviewer observation – other scales are based on participant self-report.