Objectives: Sense of competence defines a caregiver's feeling of being capable to manage the caregiving task and is an important clinical concept in the caregiving literature. The aim of this review was to identify the factors, both positive and negative, associated with a caregiver's perception of their sense of competence.; Design: A systematic review of the literature was conducted, retrieving both quantitative and qualitative papers from databases PsycINFO, CINAHL, EMBASE, and Medline.