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Table 3 Effect estimates of group, time, events and the interaction of group and events on the momentary experience of aversive tension: Fixed and random factor estimates

From: Aversive tension in female adolescents with Anorexia Nervosa: a controlled ecological momentary assessment using smartphones

Fixed effects

Estimate

SE

t a

p b

Adjusted alpha-levelc

Intercept

18.02

5.20

3.47

.001

α ≤ .0035

Time

0.01

0.06

0.25

.801

 

Group

29.07

8.00

3.63

< .001

α ≤ .0035

Food Intake

0.54

1.58

0.34

.733

 

Food Intake x Group

6.43

2.06

3.12

.004

α ≤ .005

School

1.41

1.46

0.97

.338

 

School x Group

1.98

1.99

1.00

.326

 

Sport

0.03

2.52

0.01

.992

 

Sport x Group

−5.58

4.93

−1.13

.266

 

Random effects

Variance

SE

Wald Z

p b

 

Intercept

312.32

80.13

3.90

< .001

α ≤ .0035

Time

0.07

0.03

2.57

.005

α ≤ .005

Intercept-time covariance

−0.48

1.12

−0.40

.689

 

Autocorrelation

0.02

0.02

1.00

.320

 

Residual

197.35

9.64

20.46

< .001

α ≤ .0035

  1. Note: N = 40 persons, 1,027 observations. Group was coded controls = 0 and patients = 1, events 1 if present and 0 if absent immediately before responding. Therefore, group and event effects show additive effects for the patient group and if event was present
  2. aWe took a conservative approach to specify degrees of freedom, such that these were based on the number of participants (N = 40) and not on observations (N = 1,027). Degrees of freedom are therefore 39 for time, 38 for intercept and group, 36 for all additional effects
  3. bAll p-values are two-tailed expect in case of variances, where one-tailed p-values are used as variances are non-negative
  4. cAlpha-error adjustment was conducted with the Bonferroni-Holm procedure