Table 3 Descriptive statistics (mean, SD, Skewness and Kurtosis) and internal consistency (Cronbach’s alpha) of CBCL scales for the third (outside brackets) and the fourth (inside brackets) occasion of measurement, along with t tests for the mean differences (mean3–mean4) between the two measurement occasions

7.24 (7.68)

5.76 (5.80)

− .02 (− .03)

− 1.51 (− 1.50)

.85 (.85)

4.29 (4.54)

5.34 (3.92)

1.14 (.52)

− .47 (− .79)

.94 (.80)

3.75 (4.14)

3.47 (3.90)

.98 (.98)

.10 (.17)

.78 (.81)

15.29 (16.36)

12.49 (12.56)

.38 (.17)

− 1.20 (− 1.37)

.93 (.93)

4.33 (4.88)

3.73 (4.29)

.68 (.81)

− .34 (.08)

.76 (.80)

4.81 (5.66)

4.20 (5.13)

.84 (1.21)

.59 (2.21)

.77 (.82)

3.98 (4.32)

3.07 (3.41)

.51 (.54)

.24 (− .25)

.68 (.72)

4.89 (5.63)

4.67 (5.50)

.40 (1.35)

2.61 (2.23)

.80 (.83)

6.86 (7.54)

6.16 (6.90)

.21 (1.16)

1.66 (1.35)

.85 (.87)

11.76 (13.16)

10.53 (12.08)

.31 (1.27)

2.34 (2.00)

.96 (.96)

6.03 (6.51)

4.67 (5.03)

.46 (.46)

− .22 (− .44)

.89 (.89)