Table 2.

Feasibility objectives evaluated and sources of information

Data source used	Objective 1: Recruitment capability	Objective 2: Data collection procedures and outcome measures	Objective 3: Acceptability and suitability of intervention and study procedures	Objective 4: Resources and implementation of study and intervention	Objective 5: Preliminary evaluation of participant responses
Direct research measures – Quantitative standardized measures	• Participant recruitment and refusal rates	• Missing data • Internal consistency • Sensitive to effects • Normed within appropriate population researched	• Retention rate • Follow-up rates	N/A	• Quantitative data indicate likely success • Participant level data suggest changes in key outcomes • Outcome change in expected direction • Estimate of effects show promise • Evidence intervention change is not in desired outcomes
Implementation measure completed by teachers – Checklist	N/A	N/A	• Fidelity of implementation (checklist)	N/A	• Feedback intervention likely successful • Evidence intervention not implemented as intended
Semi-structured interviews conducted with teachers	• Relevance of intended population for recruitment	• Capacity • Amount of data required • Time burden	• Engagement to intervention • Integration into curriculum • Time burden of intervention • Acceptability of intervention • Interest of intervention from participants • Safety considerations	• Supports provided by research team • Adverse events reported • Technology/equipment appropriate and functional (school support) • Technology appropriate (online data collection)	• Feedback of intervention indicate likely successful • Data collection procedures appropriate • Outcome measures appropriate • Evidence intervention change is not desired outcomes • Evidence intervention not implemented as intended • Too many adaptations made to intervention
Reported by researchers	• Relevance of intended population for recruitment	N/A	• Adherence to study procedures	• Administrative capacity • Ethics adherence • Adverse events reported • Budget adherence • Technology and equipment sufficient • Data entry and analysis managed	• Outcome measures and intervention theoretically aligned • Too many adaptations made to intervention • Findings congruent with proposed theoretical model or relationship