Development of a brief scale to measure discrete positive emotions in dementia family caregiving: the positive emotions in caregiving scale (PEC-S) - Marquez-Gonzalez, M; Gallego-Alberto, L; Losada, A; Merida-Herrera, L; Garcia-Batalloso, I; Bermejo, I; Olazaran, J; Cabrera, I (Journal Of Happiness Studies, 2025)