Table 1.

Overview of outcomes, variables, measures, scales, and assessment points

Outcome	Variable	Measure	Scale	Assessment points (v)
Use	Frequency of interventions’ use:		Scale items:
	Youth KIT's 9 sections and interactions with the online mentor	Youth KIT questionnaires*	Youth KIT: I read this section; I used this section once; I used this section more than once; I did not use this section; This section did not apply to me; Mentor: I used it once;	v2–4
			I used it more than once; I did not use it; it did not apply to me
	Online activity	Login and chats with the mentor (through the host website)	Not applicable	Throughout the study
Utility	Interventions’ features:	Youth KIT questionnaires, including open-ended responses about likes and suggestions for improvement	7-point Likert scale: 0=not applicable/did not use it; 1=not at all; 7=very great extent	v2–4
	Youth KIT: organised, easy to use; easy to understand; relevant
	Mentor: easy to use; easy to understand; relevant
Impact	Performance and satisfaction with transition goals	Canadian Occupational Performance Measure scoring system†	10-point Likert scale: 1=lowest; 10=highest	v1–4
	Interventions’ helpfulness in self-management areas	Youth KIT questionnaires, including open-ended responses	7-point Likert scale: 0=not applicable/did not use it; 1=not at all; 7=very great extent	v2–4
	Impact on youth and healthcare providers	Semistructured interviews with youth and healthcare providers about the interventions		Post-transfer

*Use, utility and impact questions for the Youth KIT (and the mentor's) were developed by the team using questionnaires from prior projects involving the Youth KIT.³²

†The COPM is an individualised outcome measure designed to detect change in performance and satisfaction with performance in activities identified by the respondent as being important to him/her.³³ For this study, we applied the COPM scoring system for performance and satisfaction.

COPM, Canadian Occupational Performance Measure; v, visit.