Dr. Deborah Bybee is a community psychologist who specializes in research design and statistical methodology. Her work focuses on the application of multivariate techniques to understand complex, real-world phenomena, especially those that involve change over time. Methodologically, Dr. Bybee has particular interests in retention of research participants, optimal handling of missing data, assessment of intervention fidelity, examination of variability in treatment participation, modeling of mediation and moderation processes, and application of cost-benefit analysis to research procedures. Substantively, she has applied her methodological interests to a variety of areas, including advocacy for women with abusive partners, justice system experiences of women who have been sexually assaulted, intervention with children who have witnessed domestic violence, housing assistance for individuals who are homeless and mentally ill, supported education and employment for individuals with mental illness, and mothering by women coping with serious mental illness. In her 30-year career, Dr. Bybee has been Co-Principal Investigator or senior research methodologist on eleven large-scale NIMH grants, in addition to four grants funded by CDC, two by SAMHSA, one by NCCAN, and four by NIJ. Dr. Bybee has been an active mentor, serving on thesis and dissertation committees of more than 60 graduate students and working with post-doctoral fellows and junior faculty across the disciplines of psychology, sociology, public health, and social work.