Table 2:

Overview of evaluation methods

Evaluation domain	Research questions	Research methods	Participants	Data collection tools
External validation	Are study design and interventions in PRESTO trial valid?	Quantitative Descriptive	Reviewers	Questionnaire with fixed and open answer options
Fidelity	To what extent was the intervention implemented as planned?	Quantitative Descriptive	Students Therapists	Questionnaire Logbook, field notes workshop and evaluation meeting, email
Dose delivered	To what extent were classes provided as planned?	Descriptive	Therapists Conservatory staff	Logbook, email Field notes of evaluation meeting, email
Dose received	How was the course received by the students?	Quantitative Descriptive	Students Therapists	Questionnaire, email, field notes Logbook, fieldnotes
Health behaviour change	How did health behaviour change?	Quantitative	Students	Questionnaire
Reach	What proportion of students participated in the study?	Descriptive Qualitative	Students Therapist Conservatory staff	Email Logbook, field note Field note of evaluation meeting
Context	Which aspects may have influenced the implementation?	Themes-based analysis	Student Therapist Conservatory staff	Questionnaire, email Logbook, field note Evaluation meeting, email