The research was carried out with a group of 105 psychotherapy participants, diagnosed with neurosis or personality disorders, and 36 controls. Analysis supported the hypotheses that self-concept differentiation (SCD) decreases after psychotherapeutic interventions and that the reduction in SCD is positively correlated with an improvement in neurotic symptoms and neurotic personality traits.
AleksandrowiczJ. W.KlasaK.SobanskiJ. A.StolarskaD. (2009) KON–2006 Neurotic Personality Questionnaire. Archives of Psychiatry and Psychotherapy, 1, 21–29.
3.
BiglerM.NeimeyerG. J.BrownE. (2001) The divided self revisited: effects of self-concept clarity and self-concept differentiation on psychological adjustment. Journal of Social & Clinical Psychology, 20, 396–415.
4.
CampbellJ. D.AssanandS.Di PaulaA. (2003) The structure of the self-concept and its relation to psychological adjustment. Journal of Personality, 71, 115–140.
5.
CampbellJ. D.TrapnellP. D.KeiveS. J.KatzI. M.LaveleeL. F.LehmanD. R. (1996) Self-concept clarity: measurement, personality correlates, and cultural boundaries. Journal of Personality and Social Psychology, 70, 141–156.
6.
DiehlM.HastingsC. T.StantonJ. M. (2001) Self-concept differentiation across the adult life span. Psychology and Aging, 16, 643–654.
7.
DonahueE. M.RobinsR. W.RobertsB. W.JohnO. P. (1993) The divided self: concurrent and longitudinal effects of psychological adjustment and social roles on self-concept differentiation. Journal of Personality and Social Psychology, 64, 834–846.
8.
HigginsE. T. (1987) Self-discrepancy: a theory relating self and affect. Psychological Review, 94, 319–340.
9.
JordanA.ColeD. A. (1996) Relation of depressive symptoms to the structure of self-knowledge in childhood. Journal of Abnormal Psychology, 105, 530–540.
10.
LutzC. J.RossS. R. (2003) Elaboration versus fragmentation: distinguishing between self-complexity and self-concept differentiation. Journal of Social & Clinical Psychology, 22, 537–559.
11.
StraumanT. J.KoldenG. G.StromquistV.DavisN.KwapilL.HeereyE.SchneiderK. (2001) The effects of treatments for depression on perceived failure in self-regulation. Cognitive Therapy and Research, 25, 693–712.
12.
StylaR. (2011) Dynamika zmian integracji Ja i nasilenia objawów nerwicowych w toku oddziaływań psychoterapeutycznych a skuteczność psychoterapii [Dynamics of self-concept integration and symptoms of neurosis in the course of psychotherapeutic process and the effectiveness of psychotherapy]. Unpublished doctoral dissertation, Faculty of Psychology, Univer. of Warsaw.
13.
StylaR.JankowskiK. S.SuszekH. (2010) Skala Niespójności Ja [Self-concept Differentiation Scale]. Studia Psychologiczne, 48, 31–43.