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Oklahoma State University

BIDE Research Team

Dr. Tonya Hammer

Tonya Hammer, Ph.D.

Lab Director
Associate Professor
Counselor Education and Supervision
St. Mary's University
CACREP Liaison

Dr. Tonya Hammer is the director of OSU’s Body Image and Disordered Eating Lab (BIDE). She is an active scholar with research interests in the areas of body image and eating disorders, humiliation and language particularly with regard to marginalized populations, relational cultural theory, and the area of professional identity and competence in the counseling field.  


Ashley Hadwiger

Ashley Hadwiger, MS

Counseling Psychology Doctorate Student

My name is Ashley Hadwiger and I am a graduate student in the Counseling Psychology Doctoral Program at Oklahoma State University. I received my Masters of Science degree in Educational Psychology, specialty Counseling Psychology in August 2017 and my Bachelors of Science in Psychology in May 2016 both from Oklahoma State University. My clinical and research interests include body image and body image related disorders, eating disorders, health psychology, and identity development. I aspire to work in an interdisciplinary hospital setting, working alongside physicians, dietitians, and other medical staff.


Jennie Martin, LPC-C, NCC

Counseling Psychology Doctorate Student

My name is Jennie Martin and I am a graduate student in the Counseling Psychology Doctoral Program at Oklahoma State University. I received my Master of Science degree in Clinical Mental Health Counseling from Northeastern State University in December of 2015. I received my Bachelor of Art degree in Psychology in May of 2013. I am also a Licensed Professional Counselor – Candidate and a Nationally Certified Counselor. My clinical and research interests are Body Dysmorphic Disorder, Eating Disorders, and other body image related concerns, with an emphasis on the development of such issues within a cultural and familial context. I aspire to work in a hospital or inpatient setting that focuses on treating body image related disorders and to develop prevention programs to educate youth and families about the risk factors for such disorders and concerns.


Chris Jayne

Chris Jayne, MS

Counseling Psychology Doctorate Student

Hi my name is Chris Jayne and I am a Counseling Psychology Doctoral student, as well as a Licensed Professional Counselor-Candidate in the state of Oklahoma. I received my M.S. in Mental Health Counseling from Oklahoma State University. While working on my counseling degree I concurrently earned my M.S. in Applied Exercise Science. My research interests include body dissatisfaction, masculinity, body dysmorphic disorder, sports psychology, and sexual health.