Skip to main content

Table 3 Discriminative capacity on cognitive flexibility for alternative severity classifications

From: Cognitive flexibility and DSM-5 severity criteria for eating disorders: assessing drive for thinness and duration of illness as alternative severity variables

AN group (n = 100)

WCST T-scores

EDI-2 drive for thinness

Duration of the disorder

Low n = 66

High n = 34

Factor group

Short n = 78

Long n = 22

Factor group

Mean

SD

Mean

SD

p

ES

Mean

SD

Mean

SD

p

ES

WCST: PctErrors

46.94

11.36

49.03

11.29

0.385

0.008

49.13

10.92

42.41

11.44

0.013*

0.061

WCST: PctPersRsps

48.62

11.43

49.41

12.09

0.749

0.001

50.54

11.44

43.05

10.43

0.007*

0.072

WCST: PctPersErrors

48.08

11.25

49.12

11.79

0.667

0.002

50.01

11.15

42.82

10.64

0.008*

0.069

WCST: PctNonPersError

47.14

10.45

49.44

10.47

0.299

0.011

49.01

10.38

44.05

10.06

0.049*

0.039

WCST: PctCLRsps

46.59

11.65

48.79

11.54

0.371

0.008

48.78

11.21

42.23

11.76

0.018*

0.055

Deficit

n

%

n

%

p

ES

n

%

n

%

p

ES

Cognitive flexibility

19

29.2%

7

20.6%

0.353

0.093

18

23.4%

8

36.4%

0.222

0.123

BSD group (n = 61)

WCST T-scores

EDI-2 drive for thinness

Duration of the disorder

Low n = 25

High n = 36

Factor group

Short n = 46

Long n = 15

Factor group

Mean

SD

Mean

SD

p

ES

Mean

SD

Mean

SD

p

ES

WCST: PctErrors

46.32

11.98

44.14

11.36

0.474

0.009

46.43

11.74

40.73

10.21

0.098

0.046

WCST: PctPersRsps

48.40

13.11

45.86

14.89

0.495

0.008

48.80

14.95

41.07

9.42

0.065

0.057

WCST: PctPersErrors

47.68

12.99

45.08

15.05

0.487

0.008

48.13

14.99

40.07

9.33

0.055

0

WCST: PctNonPersErrors

46.40

10.16

45.78

9.75

0.810

0.001

47.09

9.97

42.80

9.01

0.144

0.036

WCST: PctCLRsps

46.68

11.90

43.75

11.10

0.329

0.016

46.35

11.57

40.67

10.16

0.095

0.047

Deficit

n

%

n

%

p

ES

n

%

n

%

p

ES

Cognitive flexibility

9

36.0%

9

25.0%

0.354

0.119

10

21.7%

8

53.3%

0.020*

0.298†

  1. AN group anorexia nervosa group, BSD group binge spectrum disorders group, WCST Wisconsin card sorting test, PctErrors percentage of errors, PctPersRsps percentage of perseverative responses, PctPersErrors percentage of perseverative errors, PctNonPersErrors percentage of non-perseverative errors, PctCLRsps percentage of conceptual level responses, Mod moderate, S/E severe/extreme, SD standard deviation, ES effect size [partial eta-squared for ANOVA (η2) and Cramer-V for chi-square test (C-V)]; *Bold: significant comparison; †Bold: effect size into the mild/moderate to the high/large range (η2 > 0.10 or C-V > 0.15).
Back to article page

Journal of Eating Disorders

ISSN: 2050-2974