Libna Arroyo grew up as the daughter of a missionary pastor and a teacher. She lived in several countries in Central America, Canada, and several states of the United States of America. Libna graduated from Southern Adventist University with a BA in Psychology, a Minor in Spanish, and a Masters in School counseling. For the last 14 years, Libna has worked in all areas of education and counseling, across 7 states, as counselor in elementary, middle/high school, alternative and adult education, mental health centers and taught college in Denver, Colorado.

She is interested in pursuing a PH. D in either counselor education, developmental or cognitive psychology.

Libna has a passion for research in psychology and some of her research interests include: the correlation between child

development and technology, academic achievement among minority students in the USA, the correlation between childhood trauma, fear development and resiliency.

She is married to Jonathan, a hospital and Air Force chaplain and they have two children, Nolan, and Katherine, and live in Angwin.

Michael Jefferson grew up the son of a minister and nurse in the town of Ojai, California. Upon graduating from Andrews University in Berrien Springs, Michigan, he received his master's degree in counseling psychology from Bowie State University in Maryland. After working two years for Social Services in Loudoun County, Virginia, Michael started working on a Ph.D. in clinical psychology at The Union Institute and University in Cincinnati, Ohio. He completed his internship in Washington, D.C., with Shambu N. Banik and Associates, former chair of the Presidents Counsel on Mental Retardation. Michael is currently completing his dissertation on the experience of interpersonal intimacy by the adult children of ministers. He teaches for both the psychology and social work department and ECE program at PUC. His mental health interest and training are in ADHD, depression, and men's issues. Michael and his wife, Kathy, have two boys, Christopher and Nicholas, and live in Angwin.

Tuwan Ussery earned his master's in social work and pastoral ministry from Andrews University. Prior to coming to PUC, Tuwan instructed behavioral sciences courses at SAU & Belhaven University and pastored in Atlanta. Those interests have continued at PUC as Tuwan currently serves in the psychology and social work department, and he continues to preach itinerantly for church groups on topics of social justice and community empowerment.

In addition to teaching, Tuwan serves as diversity, equity and inclusion officer & director of service learning. Professional affiliations include the National Association of Black Social Workers & National Youth and Leadership Conference for Service Learning.

Tuwan enjoys spending family time with his wife and their four kids, and his favorite Bible verse is John 10:10: I have come that they may have life, and that they may have it more abundantly.

Christian von Pohle grew up in Angwin and graduated with a degree in psychology from PUC in 2007. He subsequently graduated with a M.A. in Psychology from California State University, Fullerton where he focused on behavioral genetics and twin studies. Before joining the faculty at Pacific Union College, Christian worked as an adjunct-faculty member at PUC, a research coordinator at Case Western Reserve University, and a psychology instructor at Bowling Green State University. Most recently, Christian taught psychology in China for two years.
With over twenty years of classroom experience, Christian is dedicated to making psychology accessible and engaging for his students. He is particularly passionate about instilling a passion for research in his students, as well as encouraging them to present their research findings at regional and national conventions. His teaching style emphasizes critical thinking, hands-on learning, and fostering a collaborative environment where students feel encouraged to explore complex psychological concepts. Christian is also committed to mentoring students in their academic and professional journeys, helping them navigate both the theoretical and practical aspects of the field.