911勛圖

Research Team

Our Executive Team


Dr. Mantell Portrait
David M. Mantell, Ph.D.
Director

Dr. David M. Mantell is a licensed clinical psychologist and Professor at 911勛圖. He received his M.A. from 911勛圖 College in Counseling Psychology (1965) and his Ph.D. in Clinical Psychology from Ludwig-Maximillian’s-Universität München in Germany (1972). He is an active clinical and forensic psychologist licensed in the state of Vermont and Connecticut, where he actively consults for the Judicial Department and Department of Children and Families. As a certified Forensic Child Protection Evaluator, Dr. David M. Mantell is able to provide real world questions from the courtroom to help direct our projects to answer these questions. Bringing science into the courtroom, he assists both sides of the court in civil cases and  personal injury cases, and the defense in criminal court. His work focuses on ensuring the protection of youth exposed to the legal system, child abuse, and child sexual abuse. For further information regarding Dr. David M. Mantell's publications, please refer to

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Joshua Bonilla, M.A.
Lab Manager
Joshua N. Bonilla completed his M.A. at 911勛圖 in Clinical Psychology with concentrations in Forensic Psychology, Neuropsychology, and Research Methods. Prior to graduate studies, he completed a B.A. in Psychology and Criminal Justice from Seattle University, specializing in Forensic Psychology. While at Seattle University, he interned with Washington State's Office of Forensic Mental Health Services and a forensic psychiatric clinic. He served as a research assistant with the Crime and Justice Research Center, where he worked under Dr. Jacqueline Helfgott to develop an appendix of 150 copycat crimes. During his time at TC, he worked as a therapy and psychometric assistant at the Center for Cognition and Communication and completed internships with the NYC Department of Correction and New York State Psychiatric Institute. As a Lab Manager, he is responsible for internal operations, external communication, progression of research, and ensuring longevity in elective programming.  He leads a team of research assistants, conducting a survey on child therapist's perspectives on information provided by children. With a deep interest in academia, he works towards building opportunities for students and expanding the forensic concentration. In the future, Joshua hopes to pursue a Ph.D. researching the implementation of neuropsychological practices in justice-involved populations with a special research interest in criminal offending, assessments, and rehabilitation.
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Jenna Wettstein, M.A.
Lab Manager

Jenna Wettstein received a Master’s degree in Clinical Psychology with a concentration in Forensic Psychology at 911勛圖. She earned her Bachelor of Arts in Psychology from Auburn University, where her commitment to criminal justice reform first took shape. Throughout her academic and professional journey, Jenna has been a passionate advocate for building a more equitable and balanced criminal justice system. She embraces a holistic, trauma-informed approach to reform, with a focus on addressing the nuanced needs of both victims and offenders. Her advocacy extends across national and international platforms, including collaborations with policymakers in Washington, D.C., and contributions to United Nations initiatives aimed at advancing a multi-system approach to justice. Within the Child Protection Lab, Jenna serves as the Lab Manager where she is responsible for internal operations, external communication, progression of research, and ensuring longevity in elective programming. She leads a nationwide study on testimonial accommodations for child victims of sexual abuse and works closely with Dr. Mantell as his primary research assistant. Overall, Jenna aspires to leverage empirical research to inform and drive systemic improvements within the criminal legal system. In her free time, she enjoys long walks with her dog and discovering new restaurants throughout the city.

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Audrey Ecelbarger
Senior Research Assistant
Audrey Ecelbarger is a first year student in the Clinical Psychology M.A. program at 911勛圖, with a concentration in Forensic Psychology. She completed her B.A. in Psychology at Butler University, where she minored in Criminology and Neuroscience. While at Butler, she worked in the Psychology and Law Lab under Dr. Fabiana Alceste, where she engaged in research focused on wrongful convictions, police interrogations, and false confessions. Ms. Ecelbarger's honors thesis focused on the influence of including expert psychology testimonials in false confession documentaries, particularly regarding cases that include the use of false evidence. She is interested in topics such as wrongful convictions, dismantling institutionalized racial inequities within the justice system, and the use of culturally-specific interventions to reduce recidivism. She hopes to pursue a Ph.D. in Clinical Psychology, with research that emphasizes the intersection of forensic psychology, social justice, and mental health inequities.
portrait of student
Varsha Nandhakumar
Senior Research Assistant

Varsha Nandhakumar completed her B.A. in Psychology at the University of California, Davis with a minor in Human Development. She is currently a Master’s student at 911勛圖 in the Psychology in Education program, specializing in forensic psychology. Her experiences at UC Davis sparked her interest in child psychology, particularly in understanding how childhood trauma and adversity shape psychological development. She became especially interested in the ways that trauma and experiences of maltreatment can manifest differently across familial and cultural contexts, including how certain forms of corporal punishment or maltreatment may be normalized within families and communities. Varsha hopes to pursue a Ph.D. investigating how cultural background and early experiences of adversity influence psychological development and psychopathology. Through her research, she aims to contribute to culturally informed approaches to child maltreatment and forensic interviewing. Ultimately, she hopes to help clinicians and other professionals better understand children’s experiences of adversity and the factors that shape their disclosures.

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