In China, as is the case in most of the world, family is the largest source of support for frail older adults. Confucian filial piety expectations hold children-in particular sons-responsible for the care of aging parents in China. During the course of caregiving, in addition to positive feelings, the caregiver may feel overwhelmed, entrapped, and worried about their performance, which can have negative health consequences. The purpose of this exploratory study is to examine one dimension of caregiver burden "worry about performance" (WaP) and investigate whether variables inspired by Pearlin's Stress Process Model help to explain the variation of WaP, so that at-risk caregivers can be identified and supported.