Table 1.
Differentiated scale reliabilities α and systematic mean score (M) differences with associated effect sizes d concerning gender (girls N = 192, boys N = 165) and age group (12–14 N = 149, 15–18 N = 208)
| |
gender differences |
age differences |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Girls | Boys | 12-14 | 15-18 | |||||||
| |
α |
M (SD) |
α |
M (SD) |
d |
α |
M (SD) |
α |
M (SD) |
d |
| AIDA total score: Identity Diffusion |
.94 |
78.12 (32.60) |
.93 |
61.60 (27.51) |
0.55 |
.92 |
70.85 (28.92) |
.95 |
70.22 (33.15) |
0.02 |
|
1. Discontinuity |
.87 |
32.85 (14.73) |
.83 |
26.74 (12.32) |
0.45 |
.82 |
30.30 (12.91) |
.89 |
29.83 (14.74) |
0.03 |
| 1.1 attributes |
.72 |
14.24 (5.64) |
.75 |
13.00 (6.19) |
0.21 |
.70 |
13.87 (5.91) |
.75 |
13.53 (5.95) |
0.06 |
| 1.2 relationships |
.77 |
8.64 (6.21) |
.74 |
6.44 (5.57) |
0.37 |
.69 |
7.79 (5.69) |
.80 |
7.50 (6.24) |
0.05 |
| 1.3 emotional |
.76 |
9.97 (5.39) |
.73 |
7.30 (4.58) |
0.53 |
.73 |
8.65 (5.22) |
.78 |
8.80 (5.20) |
0.03 |
|
2. Incoherence |
.91 |
45.27 (19.64) |
.92 |
34.86 (17.69) |
0.56 |
.90 |
40.55 (18.58) |
.93 |
40.39 (20.09) |
0.01 |
| 2.1 consistent self |
.87 |
16.23 (9.00) |
.82 |
11.47 (7.13) |
0.59 |
.82 |
13.94 (7.90) |
.89 |
14.10 (8.95) |
0.02 |
| 2.2 autonomy |
.79 |
17.06 (7.96) |
.84 |
13.93 (7.72) |
0.40 |
.81 |
15.66 (8.27) |
.82 |
15.58 (7.82) |
0.01 |
| 2.3 cognitive | .74 | 11.98 (5.65) | .75 | 9.45 (5.39) | 0.46 | .71 | 10.95 (5.69) | .80 | 10.72 (5.65) | 0.04 |