Table 7 Summary table of fixed effects and AICs of all submodels for Model 2: Digit Span backwards, ISR total, group, time point (N = 127).

From: The impact of psychological distress on working memory during COVID-19 by disentangling cognitive deficits from emotional burden

 

Sig

AIC

Model 1

 

886.97

 Digit Span

 < .001

 ISR total

.073

 Group

.576

 Time

.104

Model 2

 

888.62

 Digit Span

 < .001

 ISR total

.067

 Group

.573

 Time

.101

 Sex

.555

Model 3

 

888.74

 Digit Span

 < .001

 ISR total

.066

 Group

.743

 Time

.087

 Sex

.770

 Age

.172

Model 4

 

877.87

 Digit Span

 < .001

 ISR total

.102

 Group

.716

 Time

.088

 Sex

.681

 Age

.111

 Years of education

.004

  1. Calculation of mixed linear models with stepwise addition of parameters to assess the quality of the model and influence of the independent variables and covariates on the dependent variable Digit Span. Covariance structure analysis: UN (unstructured covariance); AIC = Akaike information criterion; Sig. = 5% alpha level; time = visit 1 and 3.
  2. Significant values are in bold.
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