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Table 3 Conceptual framework for implementation fidelity-led data extraction for fidelity assessment

From: The Workwell trial: protocol for the process evaluation of a randomised controlled trial of job retention vocational rehabilitation for employed people with inflammatory arthritis

Fidelity measure

CFIF constructa

Measurement tool

Data for extraction

Time point

Frequency

Duration

Intensity (time spent per session)

Dose (number of sessions)

Content (what was needed and delivered)

Adherence and moderating factors

Workwell Treatment Records part 1 and 2

WES-RC treatment notes and treatment log

6-month questionnaire

Intervention start date and end date

Number of attended sessions

Time spent (in minutes) on VR activities per session

Description of problems identified, three priority problems, and interventions delivered in each session

Work services received and sources

One record per participant at start (part 1), during/at discharge (or discontinuation) (part 2)

Reasons for discontinuing (if applicable)

One per participant: WES-RC, Treatment Notes and Treatment Log completed following each treatment session

Therapist adherence

Factors affecting adherence

Adherence and moderating factors

Training: Mock WES-RC

Fidelity checklist

Mentoring record forms

Ability and confidence to conduct and plan Workwell

Components delivered, factors affecting delivery

Workwell process followed Y/N

Mentor’s comments on therapists’ delivery

Factors affecting intervention delivery

Therapist questionnaire pre-post training; Workwell trainer evaluation of therapist mock WES-RC ability

Applied to one selected completed case per Workwell therapist

Completed at formal mentoring session by Workwell mentor

Barriers and enablers to intervention delivery

Moderating factors

Interviews with Workwell Therapists

Factors affecting intervention delivery

Potential solutions (developed by OT)

One Workwell therapists from each site (who delivered Workwell)

Acceptability of the intervention

Barriers and enablers to intervention delivery

Moderating factors

Interviews with Workwell participants, and their employers

Acceptability of intervention

Factors affecting delivery

Potential solutions to barriers

Interviews with selected participants (employed; no longer employed at 12m)

Interviews with participants’ line managers/employers

PPIE interviews with intervention and control group participants

  1. Key; aCFIF Adherence includes intervention content, dose, coverage, frequency and duration of intervention; CFIF Moderating factors include participant responsiveness, intervention complexity, strategies to facilitate implementation, quality of delivery, recruitment, and context