Table 2

A priori criteria for progression to a full randomised trial: These criteria are intended as guidance, and would not be implemented in isolation, but considered within the wider context of the study and fidelity work

Progression parameterProceed without adaptionProceed with adaptionsConsider not proceeding
Proportion of homecare workers adhering to intervention (attending at least four out of six sessions).>65%51–65%≤50%
Proportion of homecare workers completing work-related strain inventory at 6-month follow-up.>75%51–75%≤50%
Proportion of homecare agency clients with dementia with DEMQoL or DEMQoL-proxy completed at 6-month follow-up.>75%51–75%≤50%
  • DEMQoL, Dementia Quality of Life.