Table III.

Means, Standard Deviations, and Univariate Test Statistics for Chapman Scales and SPQ Factors using Total Sample

	Rels of SC	1d	Rels of BPD	2d	Controls	(df) F	p
SPQ
Total Score	14.4 (11.2)	.35	14.8 (14.2)	.17	10.2 (7.1)	(2,196) 2.24	.11
Interpersonal Factor	7.6 (6.2)b	.38	7.0 (7.7)	.11	4.9 (4.7)	(2,191) 4.40	.01
Cognitive-Perceptual Factor	4.3 (4.9)	.08	4.9 (6.2)	.16	3.2 (2.6)	(2,191) .60	.55
Disorganization Factor	3.9 (3.3)	.17	4.2 (4.1)	.10	3.0 (2.4)	(2,191)1.62	.20
Chapman Scales
Social Anhedonia Scale (SAS)	8.6 (5.9)a	.44	7.9 (6.2)b	.31	6.6 (5.7)	(2,178) 6.88	.001
Physical Anhedonia Scale (PAS)	13.4 (6.1)b	.33	13.1 (7.5)	.15	11.7 (6.1)	(2,178) 3.33	.04
Magical Ideation Scale	2.6 (2.7)	.03	2.9 (3.9)	-.10	2.3 (2.0)	(2,178) .04	.97
Perceptual Aberration Scale	1.7 (2.5)	.16	1.9 (3.1)	.11	1.2 (1.3)	(2,178) .15	.87
Validity Scales
Chapman Infrequency Scale	2.3 (.6)	.00	2.4 (.7)	.15	2.3 (.6)	(2,195) .36	.70
MMPI-2 L Scale	4.3(2.1)	.29	3.6 (1.9)	-.05	3.7 (2.1)	(2,195) .81	.45
MMPI-2 K Scale	17.4 (4.6)b	-.42	16.9 (4.9)a	-.51	19.2 (4.0)	(2,195) 4.54	.01

Note. Effect sizes and test statistics are based on logarithmically transformed scores for each schizotypy measure in order to correct for non-normal distributions. Validity scales were not log transformed. Rels of SC = Relatives of schizophrenia patients; Rels of BPD = relatives of bipolar disorder patients; Controls = Nonpsychiatric control subjects.

¹effect size (Cohen, 1977) for differences between relatives of schizophrenia patients and controls.

²effect size (Cohen, 1977) for differences between relatives of bipolar patients and controls.

^adifferent from controls p < .01

^bdifferent from controls p < .05