Table 3.

Comparison of task performance between patients with low non-verbal expressivity ("low prosocials") and patients with high (normal) nonverbal expressivity ("high prosocials")

Parameter		Group	Mean	SD	sign.
Age		Low prosocials	41.29	14.66	p = .131
		High prosocials	33.5	9.78
Duration of illness		Low prosocials	9.93	9.4	p = .731
		High prosocials	8.73	7.36
Intelligence	MWT	Low prosocials	102.64	11.93	p = .502
		High prosocials	106.25	15.06
	Picture completion	Low prosocials	11.07	3.08	p = .993
		High prosocials	11.08	4.23
Executive functioning	WCST pers.	Low prosocials	3.69	2.84	p = .109
		High prosocials	2.17	1.47
	Zoo Map	Low prosocials	-0.93	3.95	p = .075
		High prosocials	1.75	3.28
Langdon et al.'s sequencing tasks	Mechanical	Low prosocials	21.07	2.9	p = .087
		High prosocials	22.67	1.5
	Social script	Low prosocials	20.64	2.85	p = .075
		High prosocials	22.75	2.93
	Capture	Low prosocials	13.5	4.78	p = .419
		High prosocials	15.08	5.02
	False belief	Low prosocials	15.86	4.88	p = .05
		High prosocials	19.75	4.81
Mentalising Task II	Sequencing	Low prosocials	27.5	6.67	p = .133
		High prosocials	31.08	4.72
	Questionnaire	Low prosocials	18.43	3.84	p = .071
		High prosocials	20.83	2.33
	Total score	Low prosocials	45.57	9.04	p = .06
		High prosocials	51.83	6.38
Positive and Negative Symptom Scale	positive	Low prosocials	18.43	4.59	p = .004
		High prosocials	13.17	3.74
	negative	Low prosocials	21.07	7.77	p = .027
		High prosocials	14.5	6.23
	disorganised	Low prosocials	24.07	5.66	p = .007
		High prosocials	17.83	4.97
	excitement	Low prosocials	5.86	1.66	p = .546
		High prosocials	6.25	1.6
	affective	Low prosocials	12.07	3.79	p = .111
		High prosocials	9.82	2.27
Social Competence (SBS)		Low prosocials	16.64	10.41	p = .05
		High prosocials	8.73	6.54
Chlorpromazine equivalents		Low prosocials	794.14	838.91	p = .551
		High prosocials	621.09	491.64

MWT: Mehrfachwahl-Wortschatz-Test (verbal or premorbid IQ); WCST pers.: number of perseverative errors in the Wisconsin Card Sorting Test.