This project hosts supplementary materials for the narrative review Measures used to Evaluate Psychosocial Interventions in Dementia Care. The review synthesises outcome measures used across 136 studies evaluating psychosocial interventions for people living with dementia and maps these measures onto the International Consortium for Health Outcomes Measurement (ICHOM) dementia standard set, with the addition of a carer wellbeing domain. The supplementary materials provided here include interactive HTML versions of Figures 2 and 3, which illustrate the distributions of intervention types and outcome measures, designed to support transparent reporting and facilitate exploration of measurement patterns across domains and intervention categories.