The Center for Assessment, Inc.

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Jennifer M. Zoltowski, MS, LLP*,  CCFC, CCSOTS


Jennifer Zoltowski, MS, LLP has an extensive history of working with individuals struggling with sexual behavior issues. This includes children, adolescents and adults. She conducts Sexual Risk Assessments to help aid those involved in the legal system or those petitioning to have their name removed from the Sex Offender Registry. She also provides treatment for persons who are struggling with sexual addictions, including internet and pornography addiction. In addition, she works with families to help them address sexual behaviors, particularly those in children and adolescents. 


Ms. Zoltowski also conducts general criminogenic risk assessments, best interest evaluations, custody assessments, domestic violence risk assessments and child abuse potential assessments.  She has testified as an expert witness in numerous counties across the state.  She also works with clients who struggle with a number of mental health disorders.  She is a member of the American Psychological Association, the Association for the Treatment of Sexual Abusers, the National Association of Forensic Counselors and the Professional Advisory Board for Coalition for a Useful Registry.


Karen Groth, ED.D, LLP, CCFC, CCSOTS


Dr. Groth is a Limited Licensed Psychologist who holds a Doctoral Degree in Counseling Psychology and a Masters Degree in Clinical & Counseling Psychology. Dr. Groth is a Clinically Certified Forensic Counselor, Clinically Certified Sexual Offender Treatment Specialist, Certified Juvenile Sexual Offender Counselor, and Certified Trauma Specialist. Dr. Groth specializes in forensic psychological evaluations and risk assessments for individuals involved in various aspects of the legal and/or criminal justice system. Her passion is for helping to bridge the gap between the mental health system and the criminal justice system and advocating for the use of risk assessments in sentencing. Dr. Groth is a national trainer and consultant for MRT, a cognitive-behavioral evidenced based treatment program for offenders and is also a faculty member in the psychology department at Macomb Community College. 


Samantha Blair, MA, LLP

Samantha Blair is a Limited License Psychologist.  She earned her bachelor's degree in neuroscience from Michigan State university and her master's degree in clinical psychology from Michigan School of Psychology. She conducts forensic psychological risk assessments for individuals involved in the legal system, as well as psychological assessments for treatment planning and diagnostic purposes.  Samantha has experience conducting individual psychotherapy for clients from many different backgrounds and life experiences.  Her style of therapy is patient-centered, working with each individual to determine the most effective approach to therapy.  Samantha is a certified Moral Reconation Therapy (MRT) facilitator.  MRT is a 12-step cognitive behavioral evidenced treatment program for criminal offenders.  She facilitates multiple MRT Groups specific to sexual offenders, and MRT based Trauma Treatment groups.

Arianna Der Manulian, MSW, LLMSW


Arianna Der Manulian is a limited-licensed clinical social worker. She earned her bachelor’s degree in psychology from Michigan State University and her master’s in clinical social work with a concentration in mental health at the University of Michigan. Arianna is also trained in sex therapy and sexuality education through the University of Michigan Sexual Health Certification Program, EMDR therapy, and Moral Reconation Therapy (MRT). Arianna has experience conducting individual psychotherapy for clients with sexual difficulties/disorders, mood disorders, adjustment/related disorders, trauma/PTSD, and substance use/related disorders. Arianna’s approach to therapy is strengths-based, assisting individuals to uncover their inherent resilience through self-exploration and empowerment. Through compassion and empathy, Arianna aims to create a comfortable, non- judgmental, and supportive environment for clients to attain their unique goals. Arianna facilitates a general MRT group, and provides individual psychotherapy to adult clients.

*A Limited Licensed Psychologist may practice under the supervision of a Licensed Psychologist. Please inquire for information regarding each practitioners’ supervisor.