Texas Tech University

Human Development and Family Studies

Positive Youth Development Lab

Current Students

Manju Chawla

Phuong Le, M.Sc.

I am currently a Ph.D. student in the Department of Human Development and Family Studies. I did my undergraduate degree at Washington State University and my Master's degree in Interdisciplinary Studies at Texas Tech University. I enjoy computer games, racquetballs, and other sports

Research Interests: Computational Thinking, Neurocognitive Processes in Youth


Parrie Mashburn, B.A.

My hometown is Dallas, Texas. I received a Bachelor of Arts degree in psychology with a minor in Spanish at the University of North Texas at Dallas. I plan to conduct research and teach in the future. In my spare time, I enjoy photography, writing, cooking, and reading about languages and cultures.

Research Interests: Cross-Cultural studies, Foster Care & Adoption, Identity Development, trauma and resiliency of children.


Olivia Stephens, M.Sc.

I obtained my Bachelors in Psychology at Berry College and my Masters at UT - San Antonio. My primary research interest is the measurement and fostering of purpose in life amount youth. In my free time, I enjoy playing board games and spending time outdoors with my dog.

Research Interests: Purpose in Life, Cross-Cultural Development, Measurement Design, & Adolescent and Emerging Adult Development

Former Students

Sherley Bedore

Dr. Sherley Bedore (2018)

Assistant Professor
Department of Sociology
South Plains College, Lubbock, Texas

Research Interests: Self-Concept, Adolescence Development, Ethnicity and Culture

Manju Chawla

Dr. Manju Chawla (2018)

Assistant Professor
Department of Human Development and Family Studies
University of Wisconsin-Stout

Research Interests: Drinking Behaviors in Youth, Substance Use, Cross-Cultural/Cross-National Research

Cindy Martinez-Garza

Cindy Martinez-Garza, M.Sc. (2017)

Aftercare Manager
Buckner Children & Family Service, Lubbock, Texas

Research Interests: Foster Youth, Aging Out of Care Process, Foster Youth-Adult Relationships

Tim Obland

Dr. Tim P. Oblad (2015)

Assistant Professor
Department of Human Sciences
Texas A&M University-Kingsville

Research Interests: Cyberbullying in Youth, Online Behaviors Involvement, Internalization/Externalization

Manju Chawla

Dr. Nancy Trevino-Schafer (2018)

County Extension Agent, Urban Youth Development
Texas A&M AgriLife Extension Service, Lubbock, Texas

Research Interests: Positive Youth Development, Curriculum Development, Family & Community-Based Education

McKenzie Wilkes

Dr. McKenzie T. Wilkes (2016)

Unit Manager, Correctional Managed Health Care
TTU Health Sciences Center, Lubbock, Texas

Research Interests: Addictions, Disordered Eating, Eating Disorders in Youth

International Collaborators

Dr. Dedsy

Dr. Dedsy Y. Berbesi-Fernández

Dean - School of Nursing
Universidad CES, Medellin, Colombia (South America)

Research Interests: Epidemiology of Drug Use, HIV/Hepatitis C Virus Prevention, Injecting Drug Users


Dr. Silmara Carneiro e Silva

Associate Professor
Department of Social Work-Applied Social Sciences
Extension Program Coordinator
Editorial Coordinator, Emancipação Journal
State University of Ponta Grossa-UEPG-Ponta Grossa, Brazil

Research Interests: Human Development, Social & Criminal Control, Social Justice, Juvenile Justice Youth

Bernadete Machado-Serpe

Dr. Bernadete Machado-Serpe

Associate Professor
Director of Curriculum Development
Department of Education
Federal Institute of Santa Catarina- IFC- Blumenau, Brazil

Research Interests: Pedagogy, School Learning Process, Social Vulnerability, Family-School Relations

Edina Schimanski

Dr. Edina Schimanski

Department of Applied Social Sciences
State University of Ponta Grossa-UEPG-Ponta Grossa, Brazil

Research Interests: Environmental Education, Gender Relations, Ecological Citizenship, Social Work