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Faculty

Our faculty are a unique blend of researchers, educators and professionals who are proven experts in their fields.

Natalia A. Baires, Clinical Assistant Professor and Online Program Director

Behavior Analysis Therapy (Online)

Dr. Natalia Baires (pronounced "by-res") is a Clinical Assistant Professor and Program Director for the online Behavior Analysis and Therapy programs. An English-Spanish bilingual, doctoral-level Board Certified Behavior Analyst (BCBA-D), Dr. Baires earned her Ph.D. in Psychology with a specialization in Behavior Analysis and Therapy from Southern Illinois University in 2020. Her research interests include culturally adapted and culturally responsive interventions for culturally and linguistically diverse individuals, social justice and equity within and outside the field of behavior analysis, compassionate approaches within behavior-analytic services and supervision/mentorship, the role of language and cognition from a Relational Frame Theory framework (particularly for bilingual speakers), and the use of Acceptance and Commitment Training to ensure sustainable behavioral flexibility and psychological well-being.



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Natalia A. Baires

Office: Life Science II, 281
Mailcode: 6502
Phone: 618-453-3529
Email: natalia.baires@siu.edu
Curriculum Vitae (PDF)

Paige S. Boydston, Clinical Assistant Professor

Behavior Analysis Therapy (Online)

Dr. Paige Boydston earned her Ph.D. in Psychology at Southern Illinois University, with an emphasis on Behavior Analysis and Therapy. She has worked with individuals and families impacted by autism for over 15 years in home, community, school, and residential settings. Dr. Boydston continues to provide clinical services to individuals in rural and remote areas in addition to teaching. Research interests include parent training, telehealth, applications of early intensive intervention procedures to older children and adolescents, and gender equality in the field of behavior analysis.



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Camilo Hurtado-Parrado, Assistant Professor

Behavior Analysis and Therapy (On-campus)

Dr. Hurtado-Parrado’s research focuses on the understanding of human and nonhuman learning and behavioral processes, especially how they are regulated by aversive events (e.g., effects of aversive stimuli on memory, self-control, problem-solving, verbal behavior, rule following, and conciliation).



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SIU Psychology Camilo Hurtado-Parrado

Office: Life Science II, 281 (MC 6502)
Phone: (618) 536-2302
Email: camilo.parrado@siu.edu
Curriculum Vitae (PDF)

Eric Jacobs, Associate Professor

Brain and Cognitive Sciences; Applied Psychology; Behavior Analysis and Therapy (On-campus)

Eric A. Jacobs (Ph.D, 1997, Experimental Psychology, University of Florida) completed a post-doctoral fellowship at the University of Vermont and is now an Associate professor in the Applied Psychology and Brain and Cognitive Sciences programs. His research interests include human operant behavior, quantitative analyses of choice and decision-making (e.g., delay discounting, "self-control", & "impulsivity"), applied behavior analysis, behavioral economics, behavioral ecology, and behavioral pharmacology.



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SIU Psychology Eric Jacobs

Office: Life Science II, 275A
Phone: (618) 453-3555
Email: eajacobs@siu.edu
Curriculum Vitae (PDF)

Deija McLean, Clinical Assistant Professor

Behavior Analysis and Therapy (Online)

Dr. Deija McLean earned her Ph.D. in School Psychology, with focus in applied behavior analysis. She then completed her pre-doctoral internship at the Kennedy Krieger Institute where she provided outpatient behavioral services to children and adolescents with developmental disabilities who exhibited severe challenging behavior. Dr. McLean’s interests include treatment of challenging behaviors, diagnostic assessment of Autism Spectrum Disorder, caregiver training of behavior reduction programs, and interdisciplinary collaboration.



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SIU Psychology Deija McLean

Office: Life Science II, 281
Phone: (618) 453-3529
Email: deija.mclean@siu.edu
Curriculum Vitae (PDF)

Ryan Redner, Associate Professor

Behavior Analysis and Therapy (On-campus)

Ryan Redner is an Associate Professor and Program Director in the Behavior Analysis and Therapy program. Ryan received his Doctoral degree from Western Michigan University under Dr. Alan Poling and went on to complete a Postdoctoral Research Fellowship at the University of Vermont in the area of Behavior and Health with Dr. Stephen T. Higgins. He studies the personal health choices that lead to premature death and exorbitant health care costs in the United States (cigarette smoking, physical exercise, and healthy eating). 



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SIU Psychology Ryan Redner

Office: Rehn Hall, 335A
Phone: (618) 453-8295
Email: rredner@siu.edu

Lilith Reuter-Yuil, Clinical Assistant Professor

Behavior Analysis and Therapy (On-campus)

Lilith Reuter-Yuill is a Clinical Assistant Professor for the Behavior Analysis and Therapy Program. She is a dually certified speech-language pathologist and behavior analyst. Her clinical work emphasizes interprofessional collaboration to optimize outcomes for children with complex communication needs and their families. Her research interests include identifying precision-interventions for individuals that utilize augmentative and alternative communication (AAC), clinical applications for estimates of contingency strength, and use of behavioral systems analysis to design and implement collaborative models of service delivery.



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Lilith Reuter-Yuil

Office: Life Science II Rm. 281
Phone: (618) 453-8258
Email: lreuteryuill@siu.edu

Kate M. Sadler, Clinical Assistant Professor

Behavior Analysis and Therapy (Online)

Kate M. Sadler is a Clinical Assistant Professor for the Behavior Analysis and Therapy Program. Dr. Sadler obtained her PhD from the University of Missouri; Columbia and completed post-doctoral work at the University of Virginia. She has over 25 years of experience working with individuals impacted by developmental disabilities and autism, in various roles (as an early childhood special education teacher, special education teacher, behavior analyst, and psychological examiner).



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Lesley Shawler, Assistant Professor

Behavior Analysis and Therapy (On-campus)

Dr. Lesley Shawler is a Board Certified Behavior Analyst (BCBA) and earned her Ph.D. from the Institute of Applied Behavior Studies - Endicott College in 2019 under the advisement of Dr. Caio Miguel. She completed a two year postdoctoral fellowship at Kennedy Krieger Institute and Johns Hopkins University School of Medicine in the Neurobehavioral Unit and Clinical Outcomes department. Dr. Shawler has experience working with individuals with developmental disabilities and mental health diagnoses across the lifespan and in a myriad of settings. Her main expertise includes the assessment and treatment of challenging behavior and teaching verbal behavior to individuals with Autism and other neurodevelopmental disabilities.

 



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SIU Psychology Lesley Shawler

Office: Life Sciences II, 275B
Phone: (618) 536-2302
Email: lesley.shawler@siu.edu
Curriculum Vitae (PDF)

Natalie F. Williams Awodeha, Clinical Assistant Professor

Behavior Analysis and Therapy (Online)

Originally from Oklahoma City, Dr. Williams Awodeha holds a B.A. in Psychology from The University of Oklahoma, M.S. in Rehabilitation Counseling from Langston University, and Ph.D. in Counselor Education from Ohio University. She completed the BACB-approved course sequence at Florida Institute of Technology. Research interests include cultural and linguistic inclusion in ABA, employment disparities for African Americans with cognitive disabilities, and peer-to-peer support groups for women of color with mental health concerns (see CV for complete list of publications).



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School of Psychological and Behavioral Sciences | College of Health and Human Sciences | 618-536-2301 |