Certified nursing assistants and nurses have voiced their need for education and support in their attempts to care for residents with dementia. Staff development can easily fail to change the actual behavior of staff or provide the needed support for sustained behavior change if it occurs. This study evaluated a staff development system that included person-centered care with dementia-specific content, experiential learning opportunities in class and with residents, and a mentoring system to support behavior change. At pre-post comparison, certified nursing assistants showed measurable improvement in person-centered care behaviors when observed with residents. Thus, the evaluation of the staff development system demonstrated positive outcomes.