Table 3 Parameter estimates for linear growth curve models testing change over time at three waves

ICC

-2LL

∆ p

γ₀₀

SE

p

γ₁₀

SE

p

τ₀₀

τ₁₁

τ₀₁

 Anxiety

Intercept only

.60

− 4444.00

13.73

0.30

<.001

6.02

 N = 504

Fixed slopes

− 4443.34

.252

13.56

0.34

<.001

0.19

0.17

.252

6.02

Random slopes

− 4427.29

<.001

13.56

0.34

<.001

0.21

0.19

.283

6.57

2.68

−.32

 Depression

Intercept only

.58

− 4099.91

9.14

0.23

<.001

4.53

 N = 504

Fixed slopes

− 4073.72

<.001

8.31

0.25

<.001

0.95

0.13

<.001

4.56

Random slopes

− 4050.70

<.001

8.31

0.24

<.001

0.94

0.15

<.001

4.48

1.99

−.07

 Rumination

Intercept only

.47

− 2633.23

6.08

0.08

<.001

1.41

N = 502

Fixed slopes

− 2607.49

<.001

5.76

0.09

<.001

0.38

0.05

<.001

1.41

Random slopes

− 2593.13

<.001

5.75

0.09

<.001

0.39

0.06

<.001

1.73

0.74

−.56

 Resilience

Intercept only

.56

− 4236.59

23.95

0.29

<.001

5.65

N = 500

Fixed slopes

− 4234.63

.047

24.25

0.33

<.001

−0.36

0.18

.048

5.65

Random slopes

− 4233.40

.293

24.26

0.33

<.001

−0.37

0.18

.050

5.77

1.41

−.17

 Self esteem

Intercept only

.57

− 882.04

1.78

0.02

<.001

0.41

 N = 504

Fixed slopes

− 874.21

<.001

1.83

0.02

<.001

−0.05

0.01

<.001

0.41

Random slopes

− 858.26

<.001

1.83

0.02

<.001

−0.05

0.01

<.001

0.41

0.17

−.08

 Wellbeing

Intercept only

.57

− 5100.03

41.98

0.56

<.001

11.02

 N = 498

Fixed slopes

− 5099.45

.283

41.64

0.64

<.001

0.36

0.34

.283

11.01

Random slopes

− 5078.22

<.001

41.58

0.58

<.001

0.45

0.36

.218

9.74

3.92

.26

 Worry

Intercept only

.64

− 1113.28

1.61

0.03

<.001

0.53

 N = 504

Fixed slopes

− 1109.24

.004

1.57

0.03

<.001

0.03

0.01

.005

0.53

Random slopes

− 1099.47

<.001

1.57

0.03

<.001

0.04

0.01

.007

0.57

0.19

−.29

ICC

-2LL

∆ p

γ₀₀

SE

p

γ₀₀

SE

p

τ₀₀

τ₁₁

τ₀₁

 BAS Drive

N = 501

Intercept only

.47

− 1205.31

1.20

0.02

<.001

0.46

Fixed slopes

− 1200.16

.001

1.15

0.02

<.001

0.05

0.01

.001

0.46

Random slopes

− 1197.56

.074

1.15

0.03

<.001

0.06

0.02

.002

0.51

0.17

−.37

 BAS Fun

N = 501

Intercept only

.51

− 1123.33

1.70

0.02

<.001

0.46

Fixed slopes

− 1122.51

.197

1.72

0.03

<.001

−0.02

0.02

.198

0.46

Random slopes

− 1121.00

.223

1.72

0.03

<.001

−0.02

0.02

.213

0.47

0.14

−.19

 Cognitive restraint

N = 502

Intercept only

.44

− 3695.66

13.46

0.16

g < .001

2.98

Fixed slopes

−3695.63

.813

13.44

0.19

<.001

0.02

0.11

.813

2.98

Random slopes

− 3679.59

<.001

13.44

0.18

<.001

0.01

0.13

.933

3.09

1.67

−.22

 Emotional eating

N = 502

Intercept only

.45

− 3038.18

5.81

0.10

<.001

1.83

Fixed slopes

− 3017.20

<.001

5.41

0.11

<.001

0.45

0.07

<.001

1.84

Random slopes

− 3007.83

<.001

5.41

0.11

<.001

0.45

0.07

<.001

1.83

0.80

−.11

 Uncontrolled eating

N = 501

Intercept only

.49

− 4004.05

20.47

0.22

<.001

4.10

Fixed slopes

− 3991.11

<.001

19.83

0.25

<.001

0.74

0.14

<.001

4.12

Random slopes

− 3987.04

.017

19.82

0.26

<.001

0.76

0.15

<.001

4.52

1.56

−.36

 Lack of Perseverance

N = 504

Intercept only

.42

− 967.906

2.11

0.02

<.001

0.35

Fixed slopes

− 961.947

<.001

2.15

0.02

<.001

−0.05

0.01

<.001

0.35

Random slopes

− 959.146

.061

2.15

0.02

<.001

−0.05

0.01

<.001

0.40

0.15

−.48

 Lack of premeditation

N = 504

Intercept only

.45

− 903.034

2.23

0.02

<.001

0.35

Fixed slopes

− 889.513

<.001

2.29

0.02

<.001

−0.07

0.01

<.001

0.35

Random slopes

− 888.698

.442

2.29

0.02

<.001

−0.07

0.02

<.001

0.37

0.09

−.36

 Negative urgency

N = 504

Intercept only

.54

− 1057.69

2.52

0.02

<.001

0.45

Fixed slopes

−1052.65

.001

2.48

0.03

<.001

0.05

0.01

.001

0.45

Random slopes

−1046.61

.002

2.48

0.03

<.001

0.05

0.01

.003

0.46

0.16

−.17

 Sensation seeking

N = 504

Intercept only

.73

− 1103.82

2.96

0.03

<.001

0.62

Fixed slopes

− 1102.97

.190

2.98

0.03

<.001

−0.02

0.01

.191

0.62

Random slopes

− 1096.78

.002

2.98

0.03

<.001

−0.02

0.01

.172

0.64

0.17

−.19

 Negative life events

N = 503

Intercept only

.48

− 3604.32

5.34

0.15

<.001

2.74

Fixed slopes

− 3602.05

.033

5.53

0.17

<.001

−0.21

0.10

.033

2.74

Random slopes

− 3598.19

.021

5.53

0.18

<.001

−0.22

0.10

.030

3.09

0.64

−.65

 Risk involvement

N = 503

Intercept only

.57

− 2803.55

4.19

0.09

<.001

1.80

Fixed slopes

− 2722.83

<.001

2.94

0.13

<.001

0.67

0.05

<.001

1.88

Random slopes

− 2707.75

<.001

2.93

0.13

<.001

0.68

0.05

<.001

1.96

0.66

−.34

 Victimisation

N = 503

Intercept only

.56

− 4294.59

9.96

0.29

<.001

5.61

Fixed slopes

− 4293.69

.182

10.16

0.32

<.001

−0.24

0.18

.182

5.61

Random slopes

− 4289.18

.011

10.16

0.33

<.001

−0.24

0.19

.199

6.01

1.99

−.31

ICC

-2LL

∆ p

γ₀₀

SE

p

γ₁₀

SE

p

τ₀₀

τ₁₁

τ₀₁

 Memory bias N = 504

Intercept only

.44

− 732.596

−0.39

0.02

<.001

0.30

Fixed slopes

− 689.730

<.001

−0.48

0.02

<.001

0.10

0.01

<.001

0.31

Random slopes

− 686.670

.046

−0.48

0.02

<.001

0.10

0.01

<.001

0.33

0.11

−.31

 Non-social interpretation bias N = 504

Intercept only

.48

− 1794.36

−0.41

0.04

<.001

0.70

Fixed slopes

− 1788.87

<.001

−0.34

0.04

<.001

−0.08

0.02

<.001

0.70

Random slopes

− 1786.81

.128

−0.34

0.04

<.001

−0.08

0.02

.001

0.75

0.23

−.30

 Social interpretation bias N = 504

Intercept only

.54

− 2021.78

0.61

0.05

<.001

0.91

Fixed slopes

−2018.65

.012

0.68

0.05

<.001

−0.07

0.03

.012

0.91

Random slopes

−2005.68

<.001

0.68

0.05

<.001

−0.07

0.03

.023

0.97

0.41

−.30