Lab Members




Hae Yeon Lee is a sixth-year, PhD candidate in Developmental Psychology. She received a B.A. in Psychology from Seoul National University in South Korea, and a M.A. in Developmental Psychology at the UT Austin. She is interested in how adolescents come to learn and mentally represent social status from various environmental cues, and how such social cognitive understandings may impact social stress, mental health, and behavioral outcomes during adolescence and beyond. Her research also implements psychological interventions to intervene in these processes at the levels of social cognition, hormones and behaviors.  CV



Melanie Netter is a fourth-year PhD student in Development Psychology at UT Austin. She received her B.S. and M.A. in Human Development from Cornell University. Her research interests lie in investigating the benefits of purpose for adolescents’ educational and social outcomes and how social institutions can better support adolescent purpose development. She is passionate about helping students, especially those from underserved backgrounds, discover how to engage with and contribute to their world in ways that are both personally and socially meaningful.




Fortunato “Nick” Medrano is a third-year doctoral student in the Developmental Psychology area. He received a B.S. in Education and Social Policy with a double major in Psychology from Northwestern University. His interests lie in the development of belonging, values, and motivation in adolescents as well as designing large-scale interventions to promote positive academic, social, and behavioral outcomes. Currently he is investigating the effects of belonging and mindset interventions in school transitions and the role of purpose and autonomy in classrooms.


Ryan Bell is the lab manager of the Adolescent Development Research Group. His academic interests are aimed at exploring the role that language plays in students’ learning and development, and he is passionate about helping to bridge the gap between researchers and practitioners in the field of education. He received his M.Ed. in 2012 while serving as an ACE Teaching Fellow in Atlanta, Georgia, and then spent five years working as a Head Teacher and innovator at St. George’s College in Santiago, Chile. Ryan completed his undergraduate studies at the University of Notre Dame in 2010, and is an avid fan of reading, travel, and all things related to sports.


Michael Mullarkey is a fifth-year graduate student in Clinical Psychology. He is interested in integrating lay theory frameworks and clinical psychology with the goal of creating scalable interventions for mental health. He’s also interested in the relationship between treatment length and treatment efficacy.
Michael’s ResearchGate Profile


Julia Chafkin is a doctoral student in Clinical Psychology with Dr. David Yeager of the Adolescent Development Research Group, Dr. Bob Josephs in the Clinical Neuroendocrinology Lab and Dr. Caryn Carlson. She is interested in the various hormonal profiles of adolescence and how they compare to the subjective experience of stress and anxiety, and in the influence of oral contraceptives on the endocrine system and the risk for depression, anxiety and postpartum mood disorders.


Jess Hennessey is the program & communications associate for the Mindset Scholars Network, an interdisciplinary research group that is co-chaired by Dr. Yeager. She also manages the Science of Parenting Speaker Series. As a former elementary school teacher in Chicago, Jess is incredibly interested in educational equity and how research can provide teachers with ways to improve outcomes for their students.
Andre Audette is the school and district research coordinator for the Yeager Lab and the Adolescent Development Research Group. His involvement in education and research spans more than twenty-five years including roles as teacher, instructional coach, curriculum specialist, professor, school improvement fellow, educator quality specialist, program evaluator, data collector, and research coordinator. His focus across all roles is to support, advocate, and promote the work of improving student academic and social outcomes, educator quality and school improvement, and the use of data-based interventions on behalf of students, schools, and districts. He received an Ed. D in Educational Leadership from Johnson & Wales University with a focus on processes and strategies to strengthen Pk-20 educator quality.


Carol Dweck; Jon KrosnickGregory WaltonGeoffrey CohenMarlone HendersonChristopher BryanAngela DuckworthSidney D’MelloJeremy Jamieson; Valerie Purdie-Vaughns; Barbara Schneider; Chris Hulleman; Rob Crosnoe