Meet Our Team

Dr. McElroy is a managing partner of Psychological Dimensions and a board-certified police and public safety psychologist through the American Board of Professional Psychology (ABPP). After completing her undergraduate degree at The Ohio State University, she attended the University of Alabama where she received a strong forensic background that she applied during her internship at University of South Carolina School of Medicine. Dr. McElroy underwent an extensive training program in public safety psychological assessment supplemented by training offered at the IACP and other venues specific to police psychology as well as selected law enforcement training programs. She served as a sworn reserve police officer from 2011 until 2021 and was an active member of the Hostage Negotiation Team and Criminal Investigation Unit, an experience that gives her a direct understanding of the demands, risks, and responsibilities faced by those in public safety and emergency services. Her dual role as psychologist and officer informs every aspect of the company’s mission: to elevate and protect those who serve. Dr. McElroy is an active member of the major national organizations of Police Psychologists (IACP, APA-Division 18, Society of Police and Criminal Psychology, National Sheriff’s Association) and has written articles for the Police Chief Magazine and other publications. Dr. McElroy has presented at professional meetings including the Colorado Association of Chiefs of Police, Georgia Association of Chiefs of Police, National Internal Affairs Investigator’s Association, FBI National Academy Associates’ National, South Carolina, Mississippi, and Georgia Chapter meetings, and the International Association of Chiefs of Police. She is the past chair of the International Association of Chiefs of Police Psychological Services Section and chaired the American Psychological Association Division 18 Police and Public Safety Psychology Education Committee for the years 2019-2021. Dr. McElroy also serves on the American Board of Police and Public Safety Psychology as a member at large, the oral exam coordinator, and has served as an examiner in numerous ABPP written and oral exams. She has proven to be an excellent manager and trainer as evidenced by chairing national meetings, heading up the education committee of the IACP, and co-training the psychologists employed by Psychological Dimensions. She is currently licensed in CO, CA, GA, MS, NY, RI, and WY; holds a temporary license to practice in OH and FL; and has the APIT PSYPACT designation which additionally allows her practice in 39 states. Dr. McElroy currently oversees the evaluation process for over 200 government entities across the United States, and works as Co-Chair of IACP’s Public Policy Committee, where she works to help states POST boards conform to best practice standards as defined by IACP.

Dr. Bricker is the Owner and Managing Partner of Psychological Dimensions, a national police and public safety risk management firm. He earned his Ph.D. from the University of Memphis and holds licensure as a psychologist practicing in over 40 states. He specializes in providing expert psychological consultation to local, state, and federal law enforcement agencies in the areas of fitness-for-duty evaluations, post-critical incident debriefings, pre-employment psychological screenings, and specialty assignment assessments. In his role, he also supervises agency psychologists, develops training programs, and serves as a key liaison to law enforcement leadership at the local, state, and federal levels. Dr. Bricker recently served as Chair of the IACP's Police Psychological Services Section (IACP-PPSS), where he played a critical role in shaping industry standards and best practices in policing. He has served as Chair of both the IACP-PPSS Diversity Committee and IACP’s Police and Public Safety Psychologist Guidelines Revision Committee, and currently chairs the IACP-PPSS Ethics Committee, which outlines ethical practice of psychology in law enforcement. He is dedicated to assisting and lending his expertise to police leadership, whether through his contributions to IACP’s Police Chief Magazine, serving on IACP’s Diversity Coordinating Panel (DCP)/Diversity Task Force (DTF) and IACP's Fitness for Duty Guidelines Revisions Committee, or through his current appointments to IACP's Officer Involved Shooting Guidelines Revision Committee and the Police Professional Standards, Ethics, and Image Committee (PPSEI) of IACP. As the son of a firefighter, Dr. Bricker understands firsthand the sacrifices and strength required of those who serve. His leadership at Psychological Dimensions is guided by a deep, personal commitment to ensuring that public safety professionals are supported, understood, and set up to succeed—because protecting those who protect others isn’t just professional for him, it’s personal.

Laura Estrella brings over six years of experience helping law enforcement and emergency service organizations build teams that are not only capable—but deeply aligned with the communities they serve. With a background in Criminal Justice and Philosophy from Boise State University, Laura understands the unique demands of public safety recruitment, selection, and leadership development. Based in Denver, she partners with city governments, civil service commissions, and department leaders nationwide to design role-specific assessments, modernize hiring practices, and elevate workforce culture. Her national impact is rooted in a belief that every department—regardless of size or geography—deserves tools that reflect their values and mission. Laura has led initiatives ranging from citywide job analyses to diversity-focused outreach strategies, helping clients recruit and hire candidates who bring both competence and compassion to the front lines. Whether partnering with a major metro or a rural township, she brings a sharp eye, a collaborative spirit, and a deep respect for the work that keeps communities safe. Her ability to connect the dots between data, culture, and mission has made her an indispensable partner to clients and a driving force behind Psychological Dimensions’ growing national impact.

Dr. Rosenblatt is a board-certified police and public safety psychologist and Clinical Director with Psychological Dimensions. She has extensive experience conducting pre-employment screening, post critical incident management, training, and fitness for duty evaluations. Dr. Rosenblatt is also an active member of the International Association of Chiefs of Police Psychological Services Section. Following completion of her undergraduate training at Florida State University, Dr. Rosenblatt completed a psychology doctoral program at Florida Institute of Technology followed by clinical internship at the Northeastern Ohio Universities College of Medicine. She subsequently completed a postdoctoral program in forensic and child psychology, and since that time has been exclusively providing risk-management psychological evaluations. Dr. Rosenblatt underwent an extensive training program in public safety psychological assessment supplemented by training offered by the national organizations of police psychologists. She served as Secretary/Treasurer with Division 18 Police and Public Safety Psychology division of the American Psychological Association, on the Education Committee of the International Association of Chiefs of Police Psychological Services Section and has participated on numerous board certification practice sample and oral examination review panels. Psychological Dimensions is honored to have Dr. Rosenblatt as part of our senior leadership where she directs our vast, skilled, and experienced clinical team as they provide a myriad of police and public safety services to the agencies we serve.

Kate Sullivan has been a vital force at Psychological Dimensions since 2017, bringing heart, humor, and strategic insight to everything she touches. Based in Smyrna, GA—home to our national headquarters—Kate currently serves as Director of Client Relations at our Atlanta office. Over the years, she has held pivotal roles including Business Manager and Director of Operations, and in 2018, she played an instrumental role in launching our Denver office alongside Drs. McElroy and Bricker. With nearly a decade of experience supporting public safety and emergency services agencies, Kate is deeply committed to cultivating strong, collaborative partnerships—not just transactional relationships. She thrives on solving complex problems, educating our agency partners, and ensuring their evolving needs are met with clarity, compassion, and consistency. From major office relocations to mergers and expansions, her steady leadership and dedication to our mission have helped guide the firm through critical periods of growth and transformation. Kate has been actively involved with Chiefs of Police Associations and FBI National Academy State Chapters in Georgia, Mississippi, and South Carolina. She has spearheaded several educational initiatives and media campaigns aimed at breaking the stigma of mental health in public safety. Her passion lies in dismantling the misinformation that too often hinders agencies from understanding the critical role psychological services play in building resilient, high-performing teams. Kate’s advocacy for mental health is rooted in a deep and enduring respect for those who serve and protect. Outside of work, Kate is a wife, a proud mom of two boys, a former PTA president and board member at her sons’ elementary school, a devoted gardener and musician, and someone who can always be counted on to bring warmth, humor, and perspective to any conversation. She thrives on the meaningful relationships she builds within her community and takes great pride in serving our clients with the same dedication and care she brings to every aspect of her life.

Tanjlisa M. B. Williams is a distinguished and accomplished professional, with an impressive career that spans military service and academic achievement and a track record of exceptional leadership in the business world. Combining her expertise as an Air Force veteran, a Master of Business Administration (MBA) graduate, and a Director of Operations for five years, she has cultivated a legacy of excellence and innovation. Serving with distinction in the Air Force, Tanjlisa developed a profound sense of duty, discipline, and dedication to excellence. She rose through the ranks, earning accolades for her leadership skills, strategic acumen, and unwavering commitment to the mission. During her service, she honed the ability to make crucial decisions under pressure, fostering a collaborative environment that brought out the best in her team. Following her military tenure, Tanjlisa pursued higher education, earning an MBA from the University of Phoenix in Chicago. Armed with a robust business education, she transitioned seamlessly into the corporate world, where she continued to showcase her prowess as a natural leader and innovator. For the past fifteen years, Tanjlisa has been instrumental in the field of management, amassing invaluable experience in steering teams and organizations towards success. As Director of Operations, she orchestrated complex initiatives, optimized processes, and implemented cutting-edge strategies that led to measurable growth and increased efficiency. Her ability to motivate and empower teams results in a culture of excellence, fostering employee engagement and organizational development. Tanjlisa's diverse accomplishments underscore her dedication to both professional excellence and social betterment. As a proud Air Force veteran and seasoned executive, Tanjlisa brings an unwavering commitment to service, structure, and mission success—qualities that resonate deeply with our work in public safety. Psychological Dimensions is honored to have her as part of our senior leadership team, where her integrity, strategic insight, and operational excellence continue to shape the direction and impact of the organization.

Dr. Adams completed her Predoctoral internship at the Atlanta VA Medical Center in Decatur in 2017 and conducted neuropsychological assessments and comprehensive psychological assessments with focus on behavioral modification, communication skills development, problem resolution, and goal-adjustment. Her clinical experience as an evaluator since 2008 revolved around addressing psychological traits and characteristics similar to those assessed during a police and public safety pre-employment evaluation. Dr. Adams has been working with Psychological Dimensions since May 2018. Dr. Adams also served on the education committee of the International Association of Chiefs of Police Psychological Services Section. She is known for her excellent communication with our agencies, and she will not hesitate to pick up the phone to discuss your candidates or employees with your staff. She finds purpose in providing psychological insight that helps ensure the resilience and effectiveness of first responders.

Dr. Afriecq is a licensed psychologist specializing in police and public safety. She earned her doctorate from Marywood University and completed her internship and postdoctoral residency at Eisenhower Army Medical Center, where she received extensive training and experience in fitness for duty and suitability evaluations for military service members. Prior to joining Psychological Dimensions in 2023, she worked as an Active-Duty Army Psychologist for the 101st Airborne Division and 1st Cavalry Division from 2014 to 2023, where she performed numerous fitness for duty exams, suitability assessments for drill sergeant, recruiter, and sniper training candidates, risk assessments, and security clearance evaluations.

Dr. Castillo is a licensed Clinical Psychologist. She received her doctorate degree in clinical psychology with an emphasis in forensic psychology from Azusa Pacific University in Azusa, California. Dr. Castillo has several years of experience conducting psychological evaluations across all age groups in community counseling centers, school districts, private practices, a forensic state hospital, an acute psychiatric facility, and federal prisons. Dr. Castillo has conducted numerous psychological evaluations, including competency, bariatric surgery, spinal cord stimulator surgery, veteran disability exams, and cognitive and intellectual functioning evaluations. She also has extensive experience and training in pre-employment screening and fitness for duty evaluations. She is passionate about using her clinical expertise to support those who serve and protect our communities.

Dr. Bowes earned her doctorate degree in clinical psychology from Central Michigan University and completed her postdoctoral fellowship with Psychological Dimensions before joining our staff as a consulting Police and Public Safety Psychologist. Ms. Bowes’ training focused on assessment using validated measures, and she has experience working in a correctional setting with the Denver County jails. Dr. Bowes has extensive experience providing pre-employment psychological evaluations and post-critical debriefings. She is passionate about using her clinical expertise to support those who serve and protect our communities.

Dr. Cohen is a licensed clinical psychologist with specialized education, training, and supervision in forensic and police and public safety psychology - with particular emphasis on psychological assessment for public safety personnel. Dr. Cohen conducts pre-employment, specialty assignment, and fitness-for-duty psychological evaluations. He also provides post-critical incident debriefings, annual wellness visits, and consultation to agencies on best practices in psychological hiring, service delivery, and officer wellness initiatives. Dr. Cohen is a member of the American Psychological Association’s Division 18 (Psychologists in Public Service) and the International Association of Chiefs of Police (IACP). He currently serves on the Ethics and Education Committees of the IACP’s Police Psychological Services Section (PPSS). Dr. Cohen’s work is driven by a sincere respect for the sacrifices made by those in uniform and a desire to support their mental readiness.

Dr. Coursen is a licensed psychologist has over a decade of experience working in correctional facilities, community mental health settings, and as a forensic evaluator for violence and sex offender risk assessments. She obtained a bachelor’s degree in psychology from SUNY at Plattsburgh, a master’s degree at the University of Hartford in clinical psychology and a doctorate in counseling psychology from the University at Buffalo in NY. To provide more comprehensive mental health services, she recently completed an RN nursing program with the goal of integrating psychiatric medication prescribing into her practice. Dr. Coursen has a passion for the field of police and public safety psychology and uses her extensive experience as a police and public safety psychologist to help agencies select those who protect and serve our communities.

Dr. DeVore is a licensed Police and Public Safety Psychologist with Psychological Dimensions. He earned his Ph.D. and M.A in Psychology at the University of Tennessee and completed his predoctoral internship at the University of Illinois Chicago where he focused on individual, couples, and group psychotherapy. Dr. DeVore has provided psychological services in a variety of settings including an inpatient drug and alcohol treatment center, university health centers, and private practice. His academic work has been published in numerous peer reviewed journals including the Journal of Personality Assessment, Journal of Counseling Psychology, Journal of Marriage and Family Therapy, and the American Journal of Bioethics. He also co-edited a book exploring ideas of job fit. Dr. DeVore has obtained several years of education, training, and supervision in police and public safety assessment and specializes in pre-employment psychological evaluation. He is committed to advancing the mental wellness and professional success of first responders who care deeply for our communities.

Dr. Ferrell earned her doctorate degree in clinical psychology with a concentration in forensics from Nova Southeastern University in Fort Lauderdale, Florida. Her clinical rotations throughout graduate school consisted of conducting comprehensive forensic evaluations on adolescents and adults with substance abuse, depression, anxiety, anger management, and behavioral issues. She completed her predoctoral internship through the South Florida Consortium Internship Program at the Broward Sheriff’s Office in Fort Lauderdale, Florida. During her doctoral training, Dr. Ferrell was a member of the Nova Players, where she provided trainings to various crisis response teams to help negotiators acquire active listening skills to deal with people in crisis and to facilitate trainings related to behavioral health and peer support to different law enforcement and fire departments. Dr. Ferrell joined Psychological Dimensions in 2022 as a postdoctoral fellow. She has extensive training and experience providing pre-employment psychological screening, fitness for duty evaluations, post-critical incident debriefings, evaluations for specialty placement assignments, and wellness visits. Coming from a family of law enforcement officers, she brings a strong dedication to supporting law enforcement and other safety-sensitive professionals through thoughtful, research-informed evaluations.

Dr. Gepp is a licensed clinical psychologist specializing in forensic psychology, neuropsychological evaluations, and psychological assessments for various clinical, legal, and rehabilitation settings. With extensive training and experience in both inpatient and outpatient contexts, Dr. Gepp has conducted evaluations for worker's compensation, disability, forensic, and personal injury cases. She holds expertise in violence risk assessments, psychological autopsies, and suitability assessments for police and correctional officers. Dr. Gepp earned her Doctor of Psychology from Antioch University New England, where her research focused on the impacts of forced termination in correctional mental health care. She also holds a master’s degree in clinical psychology from the same institution and an MA in General Psychology from The City College of New York. Fluent in German and skilled in various psychological testing methodologies, Dr. Gepp has contributed to the field not only through her clinical work but also as a medical reviewer for health websites like Healthline and Medical News Today.

Dr. Gonder is a licensed psychologist. Trained as an industrial/organizational psychologist, Dr. Gonder has expertise in selection practices, individual assessment, and psychometrics. She is a professor of psychology and director of the applied psychology program at Farmingdale State College where she has been on the faculty since 2006. Dr. Gonder has published her research in the areas of performance assessment, consumer psychology, and pedagogy in leading industry journals and has presented her work at more than 50 national and regional conferences. In her professional work, Dr. Gonder has served as an independent consultant with Psychological Dimensions since 2007, conducting pre-employment psychological evaluations for candidates seeking public safety and law enforcement positions in Suffolk County, NY. She is a partner of Law Enforcement Psychology Group, a joint venture with Psychological Dimensions contracted to provide pre-employment screening services. She has extensive training and experience in conducting pre-employment psychological evaluations for public safety agencies. Her work is grounded in a deep respect for those in emergency services and a commitment to helping them thrive.

Dr. Gorgas is a Board-Certified Forensic contract psychologist with Psychological Dimensions. She earned a bachelor’s degree from the University of Minnesota - Twin Cities and a doctorate degree in clinical psychology from the Minnesota School of Professional Psychology at Argosy University. Dr. Gorgas completed a predoctoral internship at Florida State Hospital and a postdoctoral fellowship at Minnesota State Operated Forensic Services. She is experienced in conducting forensic evaluations in both civil and criminal areas including disability, preemployment, competency to proceed to trial, criminal responsibility, and violence risk assessments. Dr. Gorgas has practiced in a variety of settings including state hospitals, sex offender civil commitment facilities, federal and state prisons, a VA clinic, military installations, and in private practice. Dr. Gorgas’ work as a police and public safety psychologist includes fitness for duty evaluation and pre-employment screening for both civilian personnel and employees involved in safety-sensitive positions. She considers it a privilege to support those who dedicate their lives to public service and community safety.

Dr. Herbosch has worked with a diverse group of children, adolescents and adults. Her training in various settings has allowed her to treat clients with a myriad of psychological issues, which have ranged from relationship, work, and school stressors to crisis intervention services. She also specializes in forensic psychology and provides individual, group, and family therapy to clients dealing with trauma related to abuse and domestic violence. Alessa conducts fitness for duty evaluations and pre-employment screenings for law enforcement agencies as well as risk assessments for schools. Dr. Herbosch was a staff psychologist for the New York City Police Department (NYPD) for four years and has worked with Psychological Dimensions since 2018 where she serves as a consulting police and public safety psychologist. She takes pride in applying her expertise in ways that help ensure the safety and effectiveness of those entrusted with protecting others.

Dr. Hernandez is a clinical and forensic psychologist. In addition to her work as a Police and Public Safety Psychologist with Psychological Dimensions, Dr. Hernandez has a private practice where she conducts a variety of forensic evaluations (i.e., sanity, competency, juvenile transfer, mitigation) throughout the state of Colorado. She is also employed as a contractor with the Colorado Department of Human Services (CDHS), where she conducts forensic evaluations for the state. Outside of Colorado, she is employed as an associate for Walker & Associates, LLC and provides forensic evaluations and expert testimony nationally on cases involving trauma and domestic abuse. She has extensive training and experience as a forensic evaluator and has previously worked in a variety of settings including correctional facilities, psychiatric hospitals, and outpatient diversion programs. Dr. Hernandez received her doctorate degree from Nova Southeastern University and her bachelor’s degree from University of California San Diego (UCSD). She completed her predoctoral internship at Eastern State Hospital and completed a forensic postdoctoral fellowship at the University of Denver, Denver Forensic Institute for Research, Service, and Training (Denver FIRST) where she continues to work as an affiliate. As a skilled police and public safety psychologist, Dr. Hernandez has extensive experience providing pre-employment psychological screenings and fitness for duty evaluations for Psychological Dimensions. She believes supporting first responders is one of the most meaningful ways psychologists can contribute to the public good.

Dr. Hoffman is a licensed clinical psychologist. She received her doctorate degree in Clinical Psychology from the Illinois School of Professional Psychology. Dr. Hoffman has several years of experience in conducting psychological evaluations of individuals of all ages in a variety of settings. She has specialized experience in conducting pre-surgical evaluations for individuals seeking bariatric surgery and pre-employment/recertification screening evaluations for security officer candidates. She finds purpose in providing psychological insight that helps ensure the resilience and effectiveness of first responders.

Dr. Hrzich is a licensed psychologist who earned her master and doctorate degrees in clinical psychology from Nova Southeastern University. Prior to her graduate degrees, she obtained a bachelor’s degree in psychology and master’s degree in counseling from Adelphi University in New York. She completed her postdoctoral fellowship at Psychological Dimensions, where she received specialized education, supervision, and training in police and public safety psychology. Currently, she conducts pre-employment screenings, post-critical incident debriefings, training, and organizational consultation with Psychological Dimensions. In addition to her work with Psychological Dimensions, Dr. Hrzich also conducts media evaluations and has a private therapy practice. She has a true passion for her work in public safety psychology and risk management.

Dr. Lance is a clinical and forensic psychologist. He has specialized education, supervision, and training in police and public safety psychology. Dr. Lance earned his doctorate in Psychology and Master of Arts in forensic psychology from Alliant International University, Los Angeles and his bachelor’s degree from the University of Michigan, Ann Arbor. In addition to his work at Psychological Dimensions, Dr. Lance provides clinical oversight to a forensic outpatient program that offers individual and group therapy, crisis intervention, psychological evaluations, risk assessments, and expert testimony on psycho-legal issues. Additionally, Dr. Lance has experience in forensic assessment, including competency to stand trial and malingering. He has provided clinical, forensic, and correctional psychological services in a variety of settings, including jail mental health, community and outpatient clinics, and residential facilities. His work reflects a personal and professional commitment to the well-being of those in law enforcement, corrections, and emergency services.

Dr. Hoffman is a licensed clinical psychologist. She received her doctorate degree in Clinical Psychology from the Illinois School of Professional Psychology. Dr. Hoffman has several years of experience in conducting psychological evaluations of individuals of all ages in a variety of settings. She has specialized experience in conducting pre-surgical evaluations for individuals seeking bariatric surgery and pre-employment/recertification screening evaluations for security officer candidates. She finds purpose in providing psychological insight that helps ensure the resilience and effectiveness of first responders.

Dr. Michelson is a licensed clinical psychologist and has extensive experience working with veterans with post-traumatic stress disorder. She received training in cognitive behavioral therapies at Northwestern University and the University of Chicago. Since completing her graduate training, she has worked in private practice, VA hospitals, the Center for Deployment Psychology, and with numerous law enforcement agencies across the country where she has conducted pre-employment screenings, crisis evaluations, and fitness for duty evaluations. Sara is certified by the National Center for PTSD as a provider for Prolonged Exposure Therapy and Cognitive-Processing Therapy, both evidence-based treatments to help reduce the symptoms of PTSD. She is pleased to bring her expertise to the field of police and public safety psychology and enjoys the meaningful nature of the work with first responders.

Dr. Mitchell-Roberts is a licensed Clinical Psychologist with training and supervision in forensic and police and public safety psychology. She completed her undergraduate studies at Wake Forest University in Winston-Salem, North Carolina where she received a degree in Psychology. Following her undergraduate education, she completed her graduate studies at the Regent University where she trained at practicum sites including a state prison and a Court Services Unit for juveniles. She completed her dissertation on the relationship between experiences of childhood psychological maltreatment, forgiveness, and current trauma among incarcerated individuals. After completing her predoctoral internship at the Florida Department of Corrections, Dr. Mitchell-Roberts served as a senior mental health clinician at the Florida Department of Corrections. Prior to joining Psychological Dimensions, she conducted comprehensive psychological evaluations for the Department of Corrections and Department of Juvenile Justice in Virginia. She values the opportunity to support community protectors through high-quality psychological services.

Dr. Onusko is a licensed clinical psychologist, he received his masters and doctorate degrees in clinical psychology with an emphasis on cognitive-behavioral therapy from Adler University in Chicago, Illinois. Prior to graduate school, he received his bachelor’s degree in psychology from the University of Notre Dame. He has provided clinical services for more than fifteen years in various settings including university counseling centers, community behavioral health centers, psychiatric hospitals, senior living communities, high schools, and halfway homes. He has extensive experience providing psychotherapy, psychological assessment and evaluation, crisis intervention, suicide prevention, psychoeducation, and consultation services. Dr. Onusko currently uses his expertise as a police and public safety psychologist to provide pre-employment psychological evaluations, critical incident debriefings, and other services offered by PD. He is honored to contribute to the well-being and readiness of first responders and public safety professionals.

Dr. Palmer is a licensed psychologist and is board-certified in police and public safety psychology. In her role as a psychologist, Dr. Palmer has been working with emergency responders for more than 15 years. She is certified in eye movement desensitization and reprocessing (EMDR) and is a member of the American Psychological Association and International Association of Chiefs of Police Psychological Services Section. Prior to her work as a psychologist, Dr. Palmer was a police officer for 15 years, and she is the spouse of a retired deputy from another county. Palmer Psychology consists of an additional four clinicians. Drs. Lisa Puma and Victoria Bernard also specialize in the treatment of trauma, are certified in EMDR, and have experience working with emergency responders and their family members. Both Dr. Bernard and Dr. Puma also specialize in couples counseling and have extensive experience conducting therapy with couples where one or both partners work in emergency services. Abigail Tucker, Psy.D. and Deanna McGrath, M.A also have obtained additional training and have expertise in working with emergency responders. Palmer Psychology continues to expand to add culturally competent clinicians to the team as they provide specialized therapy and training services to emergency responders and their families. Psychological Dimensions is proud to count on Dr. Palmer as an experienced and gifted police and public safety psychologist, whether through offering agency trainings, providing post-critical incident debriefings, conducting wellness visits and programming, or supervising co-responder programs. She brings compassion and purpose to her work with agencies and personnel who are committed to protecting public safety and providing emergency services.

Dr. Sample is a licensed psychologist with specialty areas in forensic and police and public safety psychology. She completed her postdoctoral fellowship at the Center of Excellence for Children, Families & the Law where she conducted child custody evaluations and psychological testing and assisted with high conflict parenting classes. She completed her doctorate degree in Counseling Psychology from the University of Memphis in 2022 and a master’s degree in clinical mental health counseling from Gannon University in 2018 with a focus on substance use treatment. Dr. Sample completed her predoctoral internship at Summit Psychological Associates in Akron, Ohio where she provided treatment for court-mandated clients and conducted forensic evaluations. Dr. Sample currently serves as a staff police and public safety psychologist for Psychological Dimensions where she conducts pre-employment screenings and fitness for duty evaluations for safety-sensitive positions in police, fire, emergency services and other safety-sensitive roles. Her work is grounded in a deep respect for those in emergency services and a commitment to helping public safety agencies thrive.

Dr. Onusko is a licensed clinical psychologist, he received his masters and doctorate degrees in clinical psychology with an emphasis on cognitive-behavioral therapy from Adler University in Chicago, Illinois. Prior to graduate school, he received his bachelor’s degree in psychology from the University of Notre Dame. He has provided clinical services for more than fifteen years in various settings including university counseling centers, community behavioral health centers, psychiatric hospitals, senior living communities, high schools, and halfway homes. He has extensive experience providing psychotherapy, psychological assessment and evaluation, crisis intervention, suicide prevention, psychoeducation, and consultation services. Dr. Onusko currently uses his expertise as a police and public safety psychologist to provide pre-employment psychological evaluations, critical incident debriefings, and other services offered by PD. He is honored to contribute to the well-being and readiness of first responders and public safety professionals.

Dr. Sharpe is an Associate Professor at The Chicago School of Professional Psychology in the Forensic Psychology Department. She is a graduate of The Chicago School of Professional Psychology’s Forensic Master’s program and Clinical Psy.D. program. Prior to joining The Chicago School as faculty in 2010, Dr. Sharpe has extensive training in conducting forensic evaluations (competency to stand trial, criminal responsibility, aid in sentencing, civil commitment/risk assessments, as well as pre-employment and fitness for duty evaluations for civilian, law enforcement and public safety personnel). Dr. Sharpe also has experience providing expert testimony in cases involving civil commitment for individuals with mental illness and risk for violence, as well as dangerousness related to drug/alcohol abuse. In addition to her work for Psychological Dimensions, Dr. Sharpe also serves as clinical director of the outpatient fitness to stand trial restoration program at The Chicago School Forensic Center. As part of this work, she conducts fitness to stand trial evaluations and oversees clinical services for clients who have been adjudicated as unfit to stand trial in their criminal proceedings, and who need treatment in the community. In addition, Dr. Sharpe is also involved in other specialized forensic evaluations including Miranda waiver, competence for immigration proceedings, psychological evaluations for immigration court (e.g., asylum).

Dr. Tirrell received her doctorate degree in clinical psychology from the Virginia Consortium Program in Clinical Psychology in 2004. She attended an APA approved internship at Eastern Virginia Medical School where she received specialized training in forensic evaluations and neuropsychological assessments. She earned her master’s degree in psychology from the University of North Florida in 2000 and her bachelor’s degree in psychology from the University of Virginia in 1992. Dr. Tirrell brings broad forensic expertise from work in outpatient clinics, psychiatric hospitals, correctional facilities, and university medical centers. Her experience includes high-stakes evaluations such as child protection and custody matters, adoption readiness, personal injury, and criminal responsibility. She is also extensively trained in C&P evaluations with military veterans and has qualified as an expert witness in multiple jurisdictions. Since 2020, she has served as a consultant for NORC at the University of Chicago on public health research grants. At Psychological Dimensions, Dr. Tirrell applies her deep forensic expertise to the full spectrum of police and public safety services. Her interest in public safety psychology stems from a commitment and desire to give back to those who put themselves at risk to protect and serve our communities and country.

Dr. Tolliver is a licensed psychologist. She earned her doctorate degree in clinical psychology from the Philadelphia College of Osteopathic Medicine in Philadelphia, PA. Following graduation, she completed a postdoctoral residency at a non-profit community mental health agency in Philadelphia where she developed a specialization in psychological and psychoeducational assessment. Jen has worked in military and federal settings as a civilian psychologist and, in this capacity, conducted fitness for duty evaluations, command-directed evaluations, specialty evaluations for active-duty military members, pre-employment evaluations for public trust positions, and operational assessments. Her dedication to serving first responders is rooted in a longstanding admiration for their resilience and service.

Dr. Warner received her doctorate in clinical psychology with a concentration in forensic psychology from Nova Southeastern University in 2022. She completed her predoctoral internship with the Federal Correctional Facility in Allenwood, PA completing two major rotations that comprised three minor rotations each. She obtained extensive training working in specialized programs in high security and in the general population at the institution. Throughout her graduate school career, Dr. Warner obtained extensive training conducting various forensic evaluations, providing individual and group counseling to individuals within the criminal justice system, and received training in providing trauma-focused treatment in both individual and group settings. Following completion of her degree, Dr. Warner worked with the Department of Veterans Affairs providing free mental health services to veterans, service members, and their families. As an Army brat herself, she has always had a soft spot for military personnel and their families. Dr. Warner’s research has focused on treatment amongst the veteran population, validation of a measure, and understanding the impact of socioeconomic factors amongst minority populations. She has been published in peer-reviewed journals, including Aggression and Violent Behavior and the European Journal of Investigation in Health, Psychology and Education (EJIHPE). She is currently in the process of becoming a licensed psychologist. Dr. Warner currently serves as a postdoctoral fellow with Psychological Dimensions where she is using her extensive education, training, and experience under the supervision of Dr. Heather McElroy to provide pre-employment psychological screening and fitness for duty evaluations. She is deeply committed to helping public safety personnel maintain psychological health throughout their careers.

Dr. Waxman has specialized education, supervision, and training in police and public safety psychology, including pre-employment psychological screening and fitness for duty evaluations. Dr. Waxman received his Bachelor of Arts degree in psychology in 2003 and a master’s degree in community counseling in 2004. Dr. Waxman is also a graduate of Nova Southeastern University’s clinical psychology doctorate program (Psy.D.), and he completed his predoctoral internship with the Federal Bureau of Prisons, Federal Correctional Institution (FCI) in Fort Worth, TX. In addition to his education, training and experience in police and public safety psychology, Dr. Waxman also has extensive experience in forensic assessment, including competency to stand trial and compensation and pension (C&P) disability evaluations. He is a member of the International Association of Chiefs of Police (IACP), National Sheriff’s Association (NSA), American Psychological Association (APA), and Colorado Association of Chiefs of Police (CACP). Dr. Waxman currently serves as a Police and Public Safety Psychologist with Psychological Dimensions where he uses his extensive experience conducting pre-employment psychological evaluations. He views his work as a way to give back to those who protect and serve with courage and integrity.

Ms. Cagle-Webb received her associate’s degree in accounting from Chattahoochee Technical College in Marietta, Ga. She brings a very diverse background from hospitality and foodservice distribution to manufacturing in the medical packaging arena and to pallet production. As a part of the Psychological Dimensions team, Sheila values the opportunity to contribute to the safety and stability of communities by working hard in her role to support the vast number of police, public safety, and emergency service agencies who partner with Psychological Dimensions. Shelia primarily manages our medical form verification process to help candidates obtain required documentation and navigate the intricacies of the pre-employment screening process.

Ms. Carr joined the Psychological Dimensions team in 2021 and has worked tirelessly to help refine our scheduling and remote processes. She is an expert in our client management proprietary software, PsiWare, and will be the client’s main point of contact for after-hours assistance and ProctorPRO testing. Anna has a degree in accounting and brings over 10 years of management and customer service experience to the firm. She values the opportunity to contribute to the safety and stability of communities by supporting those who serve them.

Ms. Estrella is the Proofreader for Psychological Dimensions, the national police and public-safety risk-management firm, where she safeguards the clarity, consistency, and grammatical precision of fitness-for-duty evaluations, pre-employment screening reports, and other mission-critical documents. With more than four decades of administrative experience across education, aviation, municipal engineering, and forensic services, she brings an uncommon blend of operational rigor and linguistic exactness to the organization. Ms. Estrella began her career as Registrar of a private English-language school in San Juan, Puerto Rico, before relocating to Colorado and spending seven years as PTA President within Denver Public Schools. She later earned certification in Travel and Tourism from Arapahoe Community College, joined Continental Airlines’ Denver reservations center, and managed corporate travel for Xcel Energy until the post-9/11 industry contraction. In 2002 she shifted to public service with the City and County of Denver, serving fifteen years in the Engineering Department at Denver International Airport, where she coordinated critical records and logistics. Following municipal retirement, she supported Forensics Truths—the polygraph provider for Psychological Dimensions—before formally joining the firm in April 2021. Now entering her fifth year, Ms. Estrella is renowned for returning error-free reports ahead of deadline, a discipline first honed as a childhood spelling-bee champion and later enforced, much to her children’s chagrin, on every homework assignment. Away from her desk she enjoys quilting, gardening, reading, and doting on her grandchildren. Her meticulous proofreading ensures that those who protect the public are themselves protected by clear, accurate, and reliable psychological documentation, because in the high-stakes world of public safety, every word matters.

Ms. Gragg is an enthusiastic force in the world of psychology, having earned her bachelor’s degree in psychology from the University of Colorado at Boulder. There, she explored the fascinating intricacies of human behavior and mental processes, creating a solid foundation for her impactful career. With years of experience in retail management, Nicole honed her exceptional customer service skills, while her time in administrative support transformed her into a master of organization and office dynamics. In the Fall of 2023, she embarked on an exciting journey by joining the innovative team at Psychological Dimensions where her diverse background aligns perfectly with our mission to promote mental health initiatives. She is proud of police and public safety personnel who place the needs of others above their own.

Ms. Jones is a powerhouse administrative professional in our corporate headquarters in Smyrna, Georgia. She is dedicated to elevating client care and streamlining operations in a variety of settings. Beyond her impressive career, she is an adventurous spirit who loves hiking through the stunning landscapes of North Georgia, showcasing her passion for both environmental stewardship and personal wellness. An enthusiastic reader, Gabriela dives into literature that broadens her cultural horizons and enriches her worldview. Her unwavering commitment to her profession and vibrant personal interests truly reflects her drive to create a positive impact in her community. She values the opportunity to contribute to the safety and stability of communities by supporting those who serve them.

Mrs. Latif brings a dynamic blend of entrepreneurial drive, diverse professional experience, and a strong service mindset to her role at Psychological Dimensions. After earning a double bachelor’s degree in psychology and theology, Jessica co-founded and has successfully operated a residence rehabilitation and property management company with her husband for over 18 years. Alongside running that business, she expanded her expertise in administration, customer service, recruitment, and hospitality—eventually becoming a Certified Sommelier, curating private events and providing beverage education for more than a decade. At Psychological Dimensions, Jessica serves as administrative support to the Media Manager, where she coordinates communication, organizes testing and services for our media center, and ensures evaluators and participants receive prompt, accurate, and considerate support. Her organizational skills, attention to detail, and adaptability are key in navigating the fast-paced needs of the media environment. Jessica thrives on engaging with individuals from a wide range of backgrounds and time zones, meeting each challenge with efficiency, professionalism, and a genuine commitment to excellence.

Ms. Laws serves as the Office Coordinator for Psychological Dimensions’ Chicago office, bringing strong organizational expertise and a solid academic foundation in psychology. A graduate of both the University of Arizona and the University of Illinois Springfield, Ms. Laws combines administrative precision with exceptional communication skills to support the operational and client-service needs of the practice. As the welcoming first point of contact for the company, she sets the tone for every interaction. Passionate about creating a vibrant workplace, Alexis plays a pivotal role on the employee engagement committee, working hand-in-hand with the staff who handle our medical forms verification processes to cultivate a positive internal culture. With over a year and a half of experience under her belt, she is dedicated to enhancing operational efficiency and boosting workplace morale. A true jack of all trades, Alexis brings her unique flair and energy to everything she does, making her an invaluable asset to her team and bringing compassion and purpose to her work with agencies committed to protecting public safety.

Mr. Leggett has had a successful career in the automotive sector, beginning as an Auto Center Manager at Sears and progressing to operations roles, including appliance center manager and operations manager. He held significant leadership positions at Macy’s and Sears and later became a district auto center manager at Pep Boys and a district in-home repair manager for Sears. In 2015, Jamie launched a Mr. Appliance franchise, achieving notable success with five years of record sales and being named Top Gun runner-up. After nearly a decade, Jamie sold the franchise in August 2024. He is passionate about data-driven decision-making, mentoring teams, and fostering accountability and excellence in the workplace. He strives to honor the service of emergency personnel by supporting our clinical team to help agencies make informed, responsible hiring decisions.

Ms. Martin is an adept leader and experienced customer service specialist. Her attention to detail makes her an excellent proctor, and she manages the testing process for hundreds of candidates each week. Originally from California, she has lived in Georgia since 2022. Ms. Martin is bilingual in English and Spanish and obtained her bachelor's degree in criminal justice in 2010. Her ability to engage with people and service their needs lead to success at every level of her career. During her time off, Jeanette enjoys cooking authentic foods and gardening. She is most proud of being a first-generation college student in her family.

Jessica Reagin is a part-time Administrative Assistant with Psychological Dimensions. In this role, she is responsible for ensuring the accurate and timely delivery of evaluation reports to clients and provides critical support in the administration of psychological testing. Her attention to detail and commitment to efficiency help uphold the high standards of service and professionalism that define the organization. Jessica is dedicated to supporting the mission of law enforcement and public safety agencies through her work.

Mr. Riccardini is Psychological Dimensions’ ProctorPRO and administrator in charge of scheduling applicants for testing and overseeing our remote testing process. His experience overseeing computer-delivered exams prior to joining the team in 2022 has helped him approach his position with a focus on streamlining the testing journey for both staff and candidates through improved processes and organization, while his background as a writer has proven to be highly beneficial for reviewing reports and procedural documents. He is dedicated to ensuring that individuals in public safety roles receive the thoughtful, high-quality evaluations they deserve