Psychometric and structural properties of the Karolinska Exhaustion Disorder Scale: a 1,072-patient study

BMC Psychiatry

Table 4 Exploratory structural equation modeling bifactor analysis of the Karolinska Exhaustion Disorder Scale (KEDS)

Items	ED (ʎ)	PSY (ʎ)	PHY (ʎ)	I-ECV
KEDS1—concentration	0.650	0.332	0.102	0.778
KEDS2—memory	0.553	0.504	-0.040	0.545
KEDS3—physical stamina	0.378	-0.123	0.487	0.362
KEDS4—mental stamina	0.638	-0.022	0.385	0.733
KEDS5—recovery	0.553	0.114	0.489	0.547
KEDS6—sleep	0.374	0.087	0.290	0.603
KEDS7—sensory hypersensitivity	0.503	-0.058	0.106	0.944
KEDS8—experience of demands	0.755	-0.185	0.029	0.942
KEDS9—irritation/anger item	0.435	-0.001	-0.052	0.986

Notes. N = 1,072. ʎ Factor loading, ED General Exhaustion Disorder factor, PSY Psychological bifactor, PHY Physical bifactor, I-ECV Item-level explained common variance index. The scale-level explained common variance index was 0.716; subscale-level explained common variance indices were 0.813 for the PSY items and 0.638 for the PHY items

ISSN: 1471-244X