Reasoning and Rehabilitation cognitive skills programme for mentally disordered offenders: Predictors of outcome

Table 1 Differences in medication status of completers and non-completers

	Completers n (%)	Non-completers n (%)	χ² df = 1	OR (95%CI)
Currently on oral typical psychotropic medication	22 (29.7)	1 (5.3)	4.861	7.62 (0.97-60.62)
Currently on oral atypical psychotropic medication	39 (52.7)	13 (68.4)	1.51	0.51 (0.18-1.50)
Currently on depot typical psychotropic medication	10 (13.5)	3 (15.8)	0.65	0.83 (0.21-2.38)
Currently on depot atypical psychotropic medication	6 (8.1)	0 (0)	1.65	0.91 (0.86-0.98)
Currently on antidepressant psychotropic medication	16 (21.6)	2 (10.5)	1.2	2.34 (0.49-11.2)
Currently on mood stabilisers psychotropic medication	20 (27.0%)	5 (26.3)	0.01	1.04 (0.33-3.25)

¹P < 0.05.

Table 2 Differences in the baseline scores of completers and non-completers on the Maudsley Violence Questionnaire, Social Problem-Solving Inventory-Revised Short, Novaco Anger Scale and Provocation Inventory, Locus of Control Scale and: Disruptive Behaviour and Social Problem Scale

	Completers Mean (SD) (n)	Non-completers Mean (SD) (n)	t value (df)	Cohen’s d
MVQ (total)	15.8 (12.2) (76)	17.4 (13.3) (21)	-0.52 (95)	0.05
SPSI-RS	11.8 (3.0) (76)	12.6 (3.3) (21)	-1.15 (95)	0.22
NAS-PI	81.0 (19.9) (76)	80.3 (18.4) (21)	0.14 (95)	0.01
LoC	16.77 (5.4) (52)	13.93 (4.4) (15)	1.85 (65)	0.57
DBSP	35.2 (11.4) (63)	43.1 (14.6) (15)	-2.27 (76)1	0.60

¹P < 0.05. MVQ: Maudsley Violence Questionnaire; DBSP: Disruptive behaviour and social problem scale; NAS-PI: Novaco Anger Scale and Provocation Inventory; LoC: Locus of Control Scale; SPSI-RS: Social problem-solving inventory-revised short.

Table 3 Differences between pre and post measures on the psychometric tests

Measure	n	(pre)	SD (pre)	Mean (post)	SD (post)	t(df)	Cohen’s d
MVQ (total)	76	15.78	12.19	12.23	9.61	3.75 (75)2	0.43
SPSI	76	11.73	3.00	12.54	3.04	-2.33 (75)1	0.27
NAS-PI	76	80.99	19.89	77.09	15.86	2.09 (75)1	0.23
LoC	52	16.77	5.42	16.32	5.39	1.91 (51)	0.08
DBSP	63	35.21	11.40	32.57	11.32	2.16 (62)1	0.27

¹P < 0.05;

²P < 0.01. MVQ: Maudsley violence questionnaire; DBSP: Disruptive behaviour and social problem scale; NAS-PI: Novaco anger scale and provocation inventory; LoC: Locus of control scale; SPSI-RS: Social problem-solving inventory-revised short.