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

From: The CogBIAS longitudinal study of adolescence: cohort profile and stability and change in measures across three waves

Self-report mood measuresModel testFixed effectsRandom effects
 ICC-2LL∆ pγ00SEpγ10SEpτ00τ11τ01
 AnxietyIntercept only.60− 4444.00 13.730.30<.001   6.02  
N = 504Fixed slopes − 4443.34.25213.560.34<.0010.190.17.2526.02  
 Random slopes − 4427.29<.00113.560.34<.0010.210.19.2836.572.68−.32
 DepressionIntercept only.58− 4099.91 9.140.23<.001   4.53  
N = 504Fixed slopes − 4073.72<.0018.310.25<.0010.950.13<.0014.56  
 Random slopes − 4050.70<.0018.310.24<.0010.940.15<.0014.481.99−.07
 RuminationIntercept only.47− 2633.23 6.080.08<.001   1.41  
N = 502Fixed slopes − 2607.49<.0015.760.09<.0010.380.05<.0011.41  
 Random slopes − 2593.13<.0015.750.09<.0010.390.06<.0011.730.74−.56
 ResilienceIntercept only.56− 4236.59 23.950.29<.001   5.65  
N = 500Fixed slopes − 4234.63.04724.250.33<.001−0.360.18.0485.65  
 Random slopes − 4233.40.29324.260.33<.001−0.370.18.0505.771.41−.17
 Self esteemIntercept only.57− 882.04 1.780.02<.001   0.41  
N = 504Fixed slopes − 874.21<.0011.830.02<.001−0.050.01<.0010.41  
 Random slopes − 858.26<.0011.830.02<.001−0.050.01<.0010.410.17−.08
 WellbeingIntercept only.57− 5100.03 41.980.56<.001   11.02  
N = 498Fixed slopes − 5099.45.28341.640.64<.0010.360.34.28311.01  
 Random slopes − 5078.22<.00141.580.58<.0010.450.36.2189.743.92.26
 WorryIntercept only.64− 1113.28 1.610.03<.001   0.53  
N = 504Fixed slopes − 1109.24.0041.570.03<.0010.030.01.0050.53  
 Random slopes − 1099.47<.0011.570.03<.0010.040.01.0070.570.19−.29
Other self-report measuresModel testFixed effectsRandom effect
 ICC-2LL∆ pγ00SEpγ00SEpτ00τ11τ01
 BAS Drive
N = 501
Intercept only.47− 1205.31 1.200.02<.001   0.46  
Fixed slopes − 1200.16.0011.150.02<.0010.050.01.0010.46  
Random slopes − 1197.56.0741.150.03<.0010.060.02.0020.510.17−.37
 BAS Fun
N = 501
Intercept only.51− 1123.33 1.700.02<.001   0.46  
Fixed slopes − 1122.51.1971.720.03<.001−0.020.02.1980.46  
Random slopes − 1121.00.2231.720.03<.001−0.020.02.2130.470.14−.19
 Cognitive restraint
N = 502
Intercept only.44− 3695.66 13.460.16g < .001   2.98  
Fixed slopes −3695.63.81313.440.19<.0010.020.11.8132.98  
Random slopes − 3679.59<.00113.440.18<.0010.010.13.9333.091.67−.22
 Emotional eating
N = 502
Intercept only.45− 3038.18 5.810.10<.001   1.83  
Fixed slopes − 3017.20<.0015.410.11<.0010.450.07<.0011.84  
Random slopes − 3007.83<.0015.410.11<.0010.450.07<.0011.830.80−.11
 Uncontrolled eating
N = 501
Intercept only.49− 4004.05 20.470.22<.001   4.10  
Fixed slopes − 3991.11<.00119.830.25<.0010.740.14<.0014.12  
Random slopes − 3987.04.01719.820.26<.0010.760.15<.0014.521.56−.36
 Lack of Perseverance
N = 504
Intercept only.42− 967.906 2.110.02<.001   0.35  
Fixed slopes − 961.947<.0012.150.02<.001−0.050.01<.0010.35  
Random slopes − 959.146.0612.150.02<.001−0.050.01<.0010.400.15−.48
 Lack of premeditation
N = 504
Intercept only.45− 903.034 2.230.02<.001   0.35  
Fixed slopes − 889.513<.0012.290.02<.001−0.070.01<.0010.35  
Random slopes − 888.698.4422.290.02<.001−0.070.02<.0010.370.09−.36
 Negative urgency
N = 504
Intercept only.54− 1057.69 2.520.02<.001   0.45  
Fixed slopes −1052.65.0012.480.03<.0010.050.01.0010.45  
Random slopes −1046.61.0022.480.03<.0010.050.01.0030.460.16−.17
 Sensation seeking
N = 504
Intercept only.73− 1103.82 2.960.03<.001   0.62  
Fixed slopes − 1102.97.1902.980.03<.001−0.020.01.1910.62  
Random slopes − 1096.78.0022.980.03<.001−0.020.01.1720.640.17−.19
 Negative life events
N = 503
Intercept only.48− 3604.32 5.340.15<.001   2.74  
Fixed slopes − 3602.05.0335.530.17<.001−0.210.10.0332.74  
Random slopes − 3598.19.0215.530.18<.001−0.220.10.0303.090.64−.65
 Risk involvement
N = 503
Intercept only.57− 2803.55 4.190.09<.001   1.80  
Fixed slopes − 2722.83<.0012.940.13<.0010.670.05<.0011.88  
Random slopes − 2707.75<.0012.930.13<.0010.680.05<.0011.960.66−.34
 Victimisation
N = 503
Intercept only.56− 4294.59 9.960.29<.001   5.61  
Fixed slopes − 4293.69.18210.160.32<.001−0.240.18.1825.61  
Random slopes − 4289.18.01110.160.33<.001−0.240.19.1996.011.99−.31
Behavioural measuresModel testFixed effectsRandom effects
  ICC-2LL∆ pγ00SEpγ10SEpτ00τ11τ01
 Memory bias N = 504Intercept only.44− 732.596 −0.390.02<.001   0.30  
Fixed slopes − 689.730<.001−0.480.02<.0010.100.01<.0010.31  
Random slopes − 686.670.046−0.480.02<.0010.100.01<.0010.330.11−.31
 Non-social interpretation bias N = 504Intercept only.48− 1794.36 −0.410.04<.001   0.70  
Fixed slopes − 1788.87<.001−0.340.04<.001−0.080.02<.0010.70  
Random slopes − 1786.81.128−0.340.04<.001−0.080.02.0010.750.23−.30
 Social interpretation bias N = 504Intercept only.54− 2021.78 0.610.05<.001   0.91  
Fixed slopes −2018.65.0120.680.05<.001−0.070.03.0120.91  
Random slopes −2005.68<.0010.680.05<.001−0.070.03.0230.970.41−.30
  1. Note: Bold indicates best fitting model; only variables that showed high stability were modelled; ICC = Intraclass Correlation Coefficient from the intercept only model; −2LL = Log-likelihood value; ∆ p = p-value for change in model fit; SE = Standard Error; γ00 = Intercept; γ10 = Slope; τ00 = Intercept variance; τ11 = Slope variance; τ01 = Covariance between random effects