Table 1

Assessing intervention fidelity in the IPCAS trial

Fidelity of designFidelity of trainingFidelity of deliveryFidelity of engagement (receipt and enactment)
Goal
  • To determine the extent to which the intervention reflects its theoretical underpinnings.

  • To determine the extent to which the training curriculum has been provided as planned.

  • To determine the extent to which the intervention was provided as planned.

  • To determine the extent to which stroke survivors understood and applied the skills gained from the intervention.

  • To determine the extent to which the intervention is distinct from ‘usual care’.

Strategies
  • Coding intervention components (ie, IPCAS training manual and MLAS curriculum) to theoretical underpinnings.

  • Training evaluation forms (MLAS).

  • Audio-recorded observations (IPCAS).

  • Self-report questionnaire (MLAS).

  • Comparison of convergence between intervention and control groups (includes recording of participating surgeries’ usual care practices).

  • Video-recorded observations (MLAS).

  • Structured telephone calls to healthcare professionals (IPCAS).

  • Postreview structured telephone calls to participants (IPCAS).

  • Audio-recorded observations (IPCAS).

  • Direct observations (MLAS).

  • Postintervention participant interviews.

  • Postintervention interviews (healthcare professionals, IPCAS).

  • Postintervention interviews (IPCAS).

  • IPCAS, Improving Primary Care After Stroke; MLAS, My Life After Stroke.