Table 1. Operationalisation of Mindfulness across Multi-Faceted Measures, Including Facet or Subscale Definitions and Sample Items.

Measure	Scales	Definition	Sample item
FFMQ	Observe*	Tendency to observe, notice, or attend to internal and external phenomena.	I intentionally stay aware of my feelings.
	Describe	Tendency to Describe or label sensations, perceptions, thoughts, emotions, etc. with words.	My natural tendency is to put my experiences into words.
	Act with Awareness	Tendency to focus undivided attention on the current activity or avoiding automatic pilot; concentration.	I easily get lost in my thoughts and feelings.
	Accept w/o Judgment**	Tendency to accept without making judgments or evaluations.	I disapprove of myself when I have irrational ideas.
	Nonreact***	Tendency not to react to one’s experience.	I watch my feelings without getting lost in them.
PHLMS	Awareness*	Tendency to be highly aware of one’s internal and external experiences.	When I am startled, I notice what is going on inside my body.
	Acceptance**	Tendency to accept and not to judge internal and external experiences.	I try to put my problems out of mind.
TMS	Curiosity*	Stance of wanting to learn more about one’s experiences.	I am curious about each of my thoughts and feelings as they occur.
	Decenter***	Tendency to relate to one’s thoughts or feelings in a wider field of Awareness rather than being overly absorbed in one’s internal experiences.	I experience myself as separate from my changing thoughts and feelings.

Conceptually similar facets are denoted by the number of asterisks. FFMQ = Five Facet Mindfulness Questionnaire [18]; PHLMS = Philadelphia Mindfulness Scale [40]; TMS = Toronto Mindfulness Scale [39].