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Table 5 Psychometric characteristics of the HEAS items and scales

From: Psychometric properties of the German Hogg Eco-Anxiety scale and its associations with psychological distress, self-efficacy and social support

Item

M

SD

S

K

rrit

pi

α if item removed

ω if item removed

HEAS total scale (α =.91, ω =.91)

 

0.55

0.50

1.19

1.39

   

Subscale Affective Symptoms (α =.87, ω =.86)

 

0.53

0.59

1.56

2.94

    

1

0.62

0.74

1.25

1.70

.72

20.70

.82

.83

2

0.41

0.67

1.74

3.08

.71

13.66

.83

.83

3

0.49

0.71

1.53

2.25

.69

16.25

.83

.84

4

0.61

0.70

1.02

1

.68

20.50

.83

.83

Subscale Rumination (α =.84, ω =.84)

 

0.39

0.55

1.57

2.44

    

5

0.38

0.64

1.84

3.48

.66

12.53

.80

 

6

0.33

0.57

1.75

3.07

.62

10.97

.74

 

7

0.48

0.68

1.47

2.15

.67

15.84

.78

 

Subscale Behavioral Symptoms (α =.79, ω =.79)

 

0.33

0.54

2.20

5.30

    

8

0.39

0.72

1.96

3.49

.49

13.15

.78

 

9

0.34

0.61

1.87

3.35

.65

11.28

.72

 

10

0.26

0.60

2.70

7.68

.55

8.59

.65

 

Subscale Personal Impact Anxiety (α =.90, ω =.90)

 

0.94

0.80

0.68

-0.10

    

11

0.93

0.86

0.67

-0.21

.64

30.85

.86

 

12

0.94

0.86

0.72

-0.02

.63

31.26

.82

 

13

0.95

0.90

0.72

-0.21

.59

31.78

.90

 
  1. Note: Omega if item removed cannot be estimated for less than 4 items. M: mean. SD: standard deviation. S: skewness. K: kurtosis. rit: Item Discrimination. pi: Item Difficulty. α: Cronbach’s Alpha. ω: McDonald’s Omega