Table 2.

Instruments administered to measure knowledge, attitudes behaviour and mental health status of participants, across time points

Variable measured	Instrument	Baseline	Post-training	Follow-up
Knowledge	Knowledge of Eating Disorder Symptoms	✓	✓	✓
	MHLQ-B
	problem recognition	✓	✓	✓
	knowledge of effective treatments scale	✓	✓	✓
	knowledge of informal help-seeking scale	✓	✓	✓
	First Aid Knowledge Test	✓	✓	✓
	Mental Health First Aid Questions
	item 5 - ALGEE	✓	✓	✓
Attitudes	Social Distance Scale	✓	✓	✓
	MHLQ-B
	Beliefs about bulimia (3 items)	✓	✓	✓
Behaviour	Level of Contact Report	✓		✓
	Mental Health First Aid Questions
	item 1 – Any contact	✓		✓
	item 2 – Number of contacts	✓		✓
	item 3 – Amount of help	✓		✓
	item 4 – Type of help	✓		✓
	item 6 – Confidence	✓	✓	✓
	First Aid Experiences Questionnaire			✓
Mental Health Status	EDE-Q	✓		✓
	K10	✓		✓