Table 3.

Comparison of OPD-SQ scores (paired-samples t-test).

OPD-SQ Scales	M (Case)	SD (Case)	M (Control)	SD (Control)	t	df	p
Cognitive ability: self-perception
Self-reflection	1.67	1.02	0.91	0.63	−3.48	23	0.002
Affect differentiation	2.04	1.11	1.10	0.99	−2.97	23	0.007
Total	1.71	0.96	0.92	0.71	−3.40	23	0.002
Cognitive ability: object perception
Self/object differentiation	1.77	0.56	1.35	0.63	−2.51	23	0.020
Whole object perception	1.49	0.78	1.24	0.78	−1.19	23	0.245
Realistic object perception	1.42	0.66	1.44	0.82	0.06	23	0.952
Total	1.56	0.55	1.34	0.60	−1.35	23	0.192
Capacity for regulation: self-regulation
Impulse control	1.78	1.00	1.06	0.62	−2.96	23	0.007
Affect tolerance	1.64	1.13	0.91	0.62	−2.58	23	0.017
Self-worth regulation	2.07	0.99	1.44	0.76	−2.91	23	0.008
Total	1.83	0.85	1.14	0.53	−3.23	23	0.004
Capacity for regulation: regulation of object relationship
Balancing of interests	1.41	0.83	1.07	0.71	−1.44	23	0.163
Anticipation	1.60	0.83	1.17	0.59	−2.43	23	0.023
Total	1.51	0.73	1.12	0.61	−2.09	23	0.048
Emotional ability: internal communication
Use of fantasies	2.22	0.87	1.74	0.93	−2.13	23	0.045
Total	1.73	0.72	1.09	0.62	−3.93	23	0.001
Emotional ability: communication with the external world
Making contact	1.66	1.14	1.15	1.09	−1.75	23	0.093
Communication of affect	1.53	0.88	1.01	0.62	−2.45	23	0.022
Empathy	1.69	0.91	2.09	1.03	1.40	23	0.176
Total	1.63	0.69	1.42	0.72	−1.12	23	0.274
Attachment capacity: internal objects
Internalization	1.50	0.95	1.23	0.81	−1.10	23	0.284
Use of introjects	2.03	0.84	1.33	0.98	−2.63	23	0.015
Total	1.77	0.80	1.28	0.81	−2.10	23	0.047
Attachment capacity: external objects
Accepting help	1.86	0.95	1.66	1.16	−0.61	23	0.551
Severing attachments	2.39	1.19	1.73	0.95	−2.29	23	0.032
Total	2.13	0.75	1.69	0.85	−1.85	23	0.077
Structure Total	1.73	0.61	1.25	0.57	−2.95	23	0.007

M, mean; SD, standard deviation; t, t-value; df, degrees of freedom; p, sig. value.