Social Enterprises


Kimberly Gentry Sperber, Ph.D

Staff Biographies

Kimberly Gentry Sperber, Ph.D.
Dr. Sperber received her Ph.D. in Criminal Justice from the University of Cincinnati in 2003 and has worked in the field for more than 20 years. She currently works as the Chief Research Officer for Talbert House and oversees the agency’s Center for Health and Human Services Research. Her responsibilities include training staff on best practices, operationalizing research into practice, measuring program effectiveness, and analyzing outcomes data. Her most recent research has focused on two areas: matching correctional program dosage to offender risk and effectively addressing opiate addiction. Dr. Sperber assists Talbert House staff to implement, monitor, and respond to Continuous Quality Improvement metrics that assess the agency’s performance in terms of process, outcomes, and treatment fidelity.

Aaron Vissman
Dr. Vissman completed his Ph.D. in behavioral sciences and health education at Emory University in Fall 2015. Prior to attending Emory, he received a Bachelor of Arts in psychology from the University of Kentucky and completed his Master of Public Health degree at San Diego State University. His research experiences to date have been diverse, including studies on substance use, antiretroviral adherence, and the efficacy of HIV/AIDS prevention interventions. He has conducted research in partnership with infectious disease clinics and organizations that serve: Latino immigrants; adolescent runaways and other groups of children; sexual minorities; persons living with HIV and AIDS; and public-housing voucher recipients. He has also worked in direct service as an outreach specialist for residential treatment facilities. Dr. Vissman is contributing to studies at Talbert House that investigate addiction, correlates of naloxone distribution, and the effectiveness of interventions administered in criminal justice populations and other populations.

Amber Manzo
Amber is a doctoral candidate at the University of Cincinnati in the School of Criminal Justice. Originally from Nevada, she received her Bachelor's degree in criminal justice from the University of Nevada, Reno before moving to Ohio where she earned a Masters degree in criminal justice from the University of Cincinnati. She has been working as a senior research assistant at Talbert House since June of 2012. Her recent projects include programmatic focus reviews for Continuous Quality Improvement initiatives, a meta-analysis on medication-assisted treatment for opiate addiction, and a study on the impact of opiate addiction on intermediate and long-term correctional program outcomes. Amber's research interests include corrections, biosocial criminology, and survey techniques.

Karen M. Ludwig, Ph.D.
Karen is the Research Associate for CHHSR and has been with Talbert House since August 2015. She has more than a decade of experience as a Research Associate at the University of Cincinnati Evaluation Services Center. Prior to that, she worked at UC’s Institute for Policy Research and the UC Medical Center’s Institute for Health Policy and Health Services Research. Karen earned a Ph.D. in Political Science from the University of Cincinnati.

CHHSR Advisory Council

Kristina Moster, Ph.D., Cincinnati Children's Hospital Medical Center
Faye Taxman, Ph.D., George Mason University
Melissa Van Dyke, LCSW, University of Strathclyde
Nancy Wolff, Ph.D., Rutgers University
April Young, Ph.D., MPH, University of Kentucky College of Public Health