Table 5.

Structural model discriminant validity.

Variables	AVE	BITS	WMS	UWES
BITS	0.771	0.878	0.270	0.253
WMS	0.617	−0.252	0.785	0.643
UWES	0.792	−0.295	0.613	0.890

Note: The upper triangle presents the HTMT matrix, the lower triangle shows the Fornell–Larcker criterion, and the diagonal elements represent the square roots of the AVE values. The bolded values represent the square root of the AVE values. They are highlighted in bold to distinguish the HTMT matrix displayed in the upper triangle from the Fornell–Larcker criteria shown in the lower triangle.

Abbreviations: BITS, Bern Illegitimate Tasks Scale; UWES, Utrecht Work Engagement Scale; WMS, Workplace Mindfulness Scale.