About Us


Daniel Herman, Ph.D

Director of CACTI,
Professor, Silberman School of Social Work at Hunter College CUNY

New York, NY
Trained in both social work and epidemiology, Dr. Herman has led CTI research and dissemination efforts over the past fifteen years. Working with a variety of collaborators, he is involved with developing and testing adaptations of CTI for various populations and service transitions, most recently focusing on improving access to treatment for persons with first episode psychosis. He has partnered with local and state government agencies and managed care organizations on implementing CTI to improve continuity of care for high-risk groups.

Sarah Conover, M.P.H.

Director of CTI Global Network,
Silberman School of Social Work at Hunter College CUNY

New York, NY
Ms. Conover, an epidemiologist, was a member of the original team that created CTI. She has since played a primary role in the model’s further development, including the CTI Fidelity Scale. Ms. Conover continues to consult broadly with provider organizations on CTI implementation, adaptation and quality improvement processes. In recent years, she has been instrumental in international dissemination of CTI, including to both high-income countries (Australia, Netherlands, UK) and low- and middle-income countries (Argentina, Brazil, Chile).

Rufina Lee, Ph.D.

Associate Director,
Center for the Advancement of Critical Time Intervention

New York, NY
Dr. Lee is an Assistant Professor at the Silberman School of Social Work where she teaches masters level courses in the mental health practice area. Dr. Lee’s research focuses on the evaluation of psychosocial interventions for people with serious mental illness and services for people experiencing early episode psychosis, including OnTrack, a coordinated specialty care model for young people experiencing their first episodes of psychosis. Dr. Lee has extensive experience with the CTI model; her involvement began as a doctoral student, working on a randomized trial of CTI with homeless persons being discharged from psychiatric hospitals in New York City. She was also the clinical supervisor for the first CTI program delivered by peer support workers. As CACTI's Associate Director, Dr. Lee continues to investigate aspects of the CTI model and to provide consultation to CTI teams nationally.

Kimberly Livingstone, M.S.W.

Pre-Doctoral Research Fellow,
Silberman School of Social Work at Hunter College CUNY

New York, NY
Ms. Livingstone’s areas of research interest are homeless service-users’ experiences and evidence-based models, including CTI and Housing First. She has 12 years of professional experience in homeless services and program management. She has been co-investigator on a qualitative research study exploring service-users’ experiences while residing in supportive housing and how people successfully move on to more independent living situations, and she plans to continue her qualitative research in this area.

Megan Nizza

Administrative Assistant, CACTI ,
M.S.W. Candidate, 2019

Silberman School of Social Work at Hunter College
New York, NY