Table 2 Schedule of enrolment, interventions, and assessments according to SPIRIT

Enrolment

Eligibility screen

X

GP Clearance

X

Informed consent

X

Allocation

X

Interventions

Clinician-supported BEeT

Pure self-help BEeT

WLC

Assessments

Demographics

X

General mental health

X

Self-harm and suicidality risk assessment

X

X

X

X

X

Eating disorder examination questionnaire (EDE-Q)

X

X

X

X

Eating disorder examination questionnaire-short (EDE-QS)

X

Kessler psychological distress scale (K10)

X

X

X

X

X

Eating disorder quality of life questionnaire (EDQOL)

X

X

X

X

Three-factor eating questionnaire (TFEQ)

X

X

X

X

Young schema questionnaire

X

X

X

X

Body mass index (BMI)

X

X¹

X

X

X

European quality of life-5 dimensions-5 levels (ED-5D-5L)

X

X

X

X

Evaluation of external health services utilised

X

X

X

X

Implementation surveys

X

Working alliance inventory-short revised (WAI-SR)²

X

Working alliance inventory for online interventions-short form (WAI-TECH-SF)

X