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 parameter | Proceed without adaption | Proceed with adaptions | Consider 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.