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Table 4 Different mean scores (M) and standard deviations (SD) between the school sample and the clinical subsample with personality disorders (PD) and associated effect size  d 

From: Assessment of identity development and identity diffusion in adolescence - Theoretical basis and psychometric properties of the self-report questionnaire AIDA

 

M (SD) N = 305school

M (SD) N = 20clin-PD

Effect size d*

AIDA total score:

65.87 (26.26)

129.75 (32.57)

d = 2.17

Identity Diffusion

   

1. Discontinuity

27.72 (11.49)

56.20 (14.74)

d = 2.17

1.1 attributes

12.95 (5.29)

20.75 (7.16)

d = 1.25

1.2 relationships

6.48 (4.78)

19.65 (6.82)

d = 2.27

1.3 emotional self refl.

8.30 (4.57)

15.80 (5.95)

d = 1.43

2. Incoherence

38.15 (16.85)

73.55 (19.65)

d = 1.94

2.1 consistent self

12.65 (7.09)

30.95 (7.20)

d = 2.56

2.2 autonomy

15.21 (7.37)

24.30 (10.04)

d = 1.04

2.3 cognitive self-refl.

10.29 (5.14)

18.30 (6.82)

d = 1.34

  1. * = Significance of all score differences were p < .001.