We identify two distinct components of parent participation in intensive family preservation services: collaboration in treatment planning and compliance with program expectations. Using hierarchical linear models, we explore influences on collaboration and compliance at the case, worker, and program levels. Effects of cross‐level interactions are also examined. Parental substance abuse, mental health problems, minority status, and lack of extended family support predict lower levels of participation. Workers' perceptions of their clients and of their own working conditions appear to influence client participation. Program factors matter as well, although some operate in tandem with case characteristics and worker perceptions.