Criterion

Model 0

Model 1

Model 2

YSR-T

CI-95%

YSR-T

CI-95%

YSR-T

CI-95%

Fixed effects

Intercepts

46.36***

42.49; 50.23

46.80***

43.05; 50.56

45.99**

16.94; 75.03

Lv 1 Children

Age (in years)

.433

−.97; 1.83

Sex (0 = male, 1 = female)

−7.92*

−14.95; −.90

Lv 2 Parents

Symptom severity (BSI GSI)

6.84**

1.72; 11.96

5.89*

.91; 10.89

Age (in years)

−.01

−.70; .69

Sex (0 = male, 1 = female)

−6.23

−15.11; 2.66

Random effects

Lv 1 children

275.92***

181.53; 419.40

301.36***

194.08; 467.95

293.44***

190.81; 450.36

Lv 2 parents

162.96*

73.07; 363.43

115.18

35.20; 376.86

97.15

26.78; 352.43

ICC

.37

.28

.25

2-log-Likelihood

1225.01

1185.40

1177.29

χ2/df

39.62/1

8.11/4

p

< .001

.088

BIC

1239.79

1204.99

1216.47