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Table 2 Descriptive statistics, internal consistency (McDonald’s ω or split-half for RT measures), and differential stability (ICC) for all variables across waves

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

  Wave 1
(N = 504)
Wave 2
(N = 450)
Wave 3
(N = 411)
Differential stability
Self-report mood measures
  M SD ω M SD ω M SD ω ICC CI Lower CI Upper
 Anxiety 13.40 7.66 .87 14.28 7.92 .87 13.87 7.82 .87 .82 .79 .85
 - Separation Anxiety 1.49 1.67 .64 1.50 1.82 .67 1.48 1.66 .59 .78 .74 .81
 - Social Phobia 4.81 2.19 .74 5.37 2.23 .76 5.20 2.21 .76 .77 .72 .81
 - Generalised Anxiety 3.36 2.25 .75 3.56 2.30 .74 3.43 2.25 .72 .79 .75 .82
 - Panic Disorder 1.66 1.93 .70 1.84 2.07 .73 1.93 2.17 .73 .75 .71 .79
 - O C D 2.09 2.11 .70 2.02 2.14 .71 1.83 2.28 .83 .77 .73 .81
 Depression 8.25 5.39 .87 9.44 6.14 .89 10.18 6.34 .90 .82 .78 .85
 Distraction 5.01 2.47 .92 4.86 2.55 .94 4.63 2.39 .94 .68 .61 .73
 Rumination 5.70 2.13 .88 6.31 1.96 .88 6.53 1.89 .89 .70 .64 .76
 Resilience 24.64 7.43 .89 23.33 7.68 .89 23.85 7.50 .90 .80 .76 .83
 Self-esteem 1.83 .51 .87 1.78 .54 .89 1.71 .58 .90 .80 .77 .84
 Wellbeing 40.75 12.58 .94 43.63 15.09 .94 41.61 15.74 .95 .80 .76 .84
 Worry 1.55 .65 .92 1.67 .69 .86 1.65 .65 .91 .84 .81 .87
Note: O C D Obsessive Compulsive Disorder; Bold indicates high level of reliability/stability
Self-report other measures
  M SD ω M SD ω M SD ω ICC CI Lower CI Upper
 BIS 1.51 .54 .73 1.94 .49 .73 1.99 .51 .73 .64 .41 .76
 BAS Drive 1.14 .68 .78 1.23 .67 .80 1.24 .67 .81 .72 .66 .77
 BAS Fun 1.73 .64 .70 1.68 .66 .80 1.68 .65 .72 .79 .75 .83
 BAS RR 2.17 .55 .74 2.03 .58 .71 2.03 .53 .73 .68 .61 .73
 Cognitive Restraint 13.47 4.27 .83 13.33 4.49 .86 13.58 4.81 .89 .73 .68 .78
 Emotional Eating 5.34 2.49 .87 6.06 2.77 .89 6.29 2.86 .92 .72 .66 .77
 Uncontrolled Eating 19.63 5.83 .88 21.05 5.80 .87 20.95 5.69 .86 .75 .70 .79
 Lack of Perseverance 2.17 .58 .85 2.07 .53 .84 2.04 .49 .82 .74 .68 .78
 Lack of Premeditation 2.30 .55 .83 2.19 .50 .81 2.14 .49 .82 .76 .71 .80
 Negative Urgency 2.47 .61 .83 2.55 .60 .84 2.56 .64 .87 .79 .75 .83
 Sensation Seeking 2.99 .73 .88 2.92 .73 .88 2.91 .76 .90 .91 .89 .93
 Negative Life Events 5.51 4.16 n/a 5.31 4.04 n/a 5.01 3.48 n/a .74 .69 .78
 Positive Life Events 6.89 3.37 n/a 6.35 3.36 n/a 6.09 3.02 n/a .57 .49 .64
 Pain Catastrophising 19.70 10.76 .92 19.69 10.83 .92 20.17 10.15 .92 .69 .63 .75
 Risk Involvement 3.59 2.20 n/a 4.36 2.39 n/a 4.67 2.44 n/a .79 .70 .85
 - Risk Perception 5.52 1.28 .87 5.19 1.24 .87 4.99 1.17 .86 .75 .68 .81
 - Benefit Perception 2.36 1.14 .85 2.75 1.18 .86 2.82 1.06 .83 .76 .69 .81
 Victimisation 9.99 7.37 .89 10.16 7.72 .91 9.03 7.24 .90 .79 .75 .83
Note: BIS Behavioural inhibition; BAS Behavioural activation; RR Reward responsiveness; n/a Calculation was not appropriate for this data Bold indicates high level of reliability/stability
Behavioural measures
  M SD ω M SD ω M SD ω ICC CI Lower CI Upper
 BART 26.95 12.30 n/a 30.28 14.13 n/a 34.27 16.15 n/a .60 .51 .68
 BMI 19.89 3.27 n/a 20.69 3.18 n/a 21.24 3.20 n/a .94 .87 .97
 DP Angry bias (RT) .60 43.32 −.02 2.50 30.62 .10 1.95 33.06 .27 .10 −.07 .25
 DP Happy bias (RT) 3.07 44.99 .08 2.75 31.06 .18 −3.62 29.77 .22 −.03 −.22 .14
 DP Pain bias (RT) 1.69 36.99 −.03 .44 29.99 .12 1.38 30.26 .16 −.12 −.34 .06
 Flanker Interference (RT) 30.91 29.80 .42 26.63 22.38 .34 24.02 23.34 .40 .49 .39 .57
 Food Bias (RT) 47.91 107.42 .67 58.15 122.89 .72 53.99 111.77 .69 .40 .29 .50
 Memory Bias −.49 .44 n/a −.34 .43 n/a −.30 .44 n/a .72 .65 .77
 - Negative Recall 2.39 2.29 n/a 3.59 2.70 n/a 3.93 2.89 n/a .68 .59 .75
 - Positive Recall 6.76 2.84 n/a 6.99 3.00 n/a 7.07 3.12 n/a .72 .67 .77
 Non-Soc. Interpretation Bias −.35 1.03 n/a −.41 1.00 n/a −.53 1.00 n/a .74 .69 .79
 - Negative Non-Social 3.17 .71 .56 3.09 .69 .54 3.07 .74 .57 .74 .69 .78
 - Positive Non-Social 3.51 .64 .46 3.50 .69 .57 3.60 .67 .60 .70 .64 .75
 Social Interpretation Bias .69 1.20 n/a .61 1.25 n/a .56 1.25 n/a .77 .73 .81
 - Negative Social 3.26 .88 .78 3.13 .94 .81 3.11 .97 .84 .77 .73 .81
 - Positive Social 2.57 .63 .56 2.52 .65 .55 2.55 .67 .64 .64 .57 .70
Note: BART Balloon analogue risk task; BMI Body-Mass-Index; DP Dot-probe; RT Reaction-Time; n/a Calculation was not appropriate for this data; Bold indicates high level of reliability/stability
Added in Wave 2
     M SD ω M SD ω ICC CI Lower CI Upper
 Attention Control 2.48 .41 .83 2.48 .41 .84 .76 .71 .81
 Binge Eating 34% n/a n/a 37% n/a n/a .60 .61 .68
 Corsi-block Forward 57.63 20.68 n/a 63.20 22.76 n/a .62 .53 .70
 Corsi-block Back 50.97 14.19 n/a 53.39 14.81 n/a .35 .21 .47
 SPS 4.36 .89 .81 4.37 .86 .79 .76 .71 .81
  1. Note: Binge eating was a categorical outcome, therefore percentage refers to frequency of those who scored positive for Binge eating; SPS Sensory-Processing Sensitivity; n/a Calculation was not appropriate for this data; Bold indicates high level of reliability/stability