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

Table 5 Psychometric characteristics of the HEAS items and scales

Item	M	SD	S	K	r_rit	p_i	伪 if item removed	蠅 if item removed
HEAS total scale (伪鈥�=.91, 蠅鈥�=.91)
听	0.55	0.50	1.19	1.39	听		听	听
Subscale Affective Symptoms (伪鈥�=.87, 蠅鈥�=.86)
听	0.53	0.59	1.56	2.94	听	听	听	听
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 (伪鈥�=.84, 蠅鈥�=.84)
听	0.39	0.55	1.57	2.44	听	听	听	听
5	0.38	0.64	1.84	3.48	.66	12.53	.80	听
6	0.33	0.57	1.75	3.07	.62	10.97	.74	听
7	0.48	0.68	1.47	2.15	.67	15.84	.78	听
Subscale Behavioral Symptoms (伪鈥�=.79, 蠅鈥�=.79)
听	0.33	0.54	2.20	5.30	听	听	听	听
8	0.39	0.72	1.96	3.49	.49	13.15	.78	听
9	0.34	0.61	1.87	3.35	.65	11.28	.72	听
10	0.26	0.60	2.70	7.68	.55	8.59	.65	听
Subscale Personal Impact Anxiety (伪鈥�=.90, 蠅鈥�=.90)
听	0.94	0.80	0.68	-0.10	听	听	听	听
11	0.93	0.86	0.67	-0.21	.64	30.85	.86	听
12	0.94	0.86	0.72	-0.02	.63	31.26	.82	听
13	0.95	0.90	0.72	-0.21	.59	31.78	.90	听

Note: Omega if item removed cannot be estimated for less than 4 items. M: mean. SD: standard deviation. S: skewness. K: kurtosis. r_it: Item Discrimination. p_i: Item Difficulty. 伪: Cronbach鈥檚 Alpha. 蠅: McDonald鈥檚 Omega

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