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About Us - The Wolper Institute for Group Learning skip to Main Content


Highly-educated professionals in group processes customize experiential leadership training

Jeffery F. Wolper, Ph.D. and Founder

Jeffrey F. Wolper, Ph.D., founder and director of The Wolper Institute for Group Learning, is a licensed psychologist with more than 35 years experience teaching and providing corporate consulting.

The Leadership and Authority Workshop is Dr. Wolper’s flagship program, which he regularly teaches for the United States Department of State at the Foreign Service Institute as well as a variety of private corporate groups and educational institutions.

He has also designed related courses such as Team Development and Leadership, and Group Dynamics. As a result of the program’s success, Dr. Wolper received an invitation to bring his program to the United States Consulate in Frankfurt, Germany January 24-27, 2017.

Dr. Wolper has been teaching Group Dynamics at The Wharton School of Business for more than 30 years and is director of the Group Process Course at the Lauder Institute at the Wharton School of Business, where all new students start their tenure by taking his course.

He also teaches the course at The Tuck School of Business at Dartmouth. Dr. Wolper earned his Ph.D. and MS degrees at The University of Pennsylvania and completed his undergraduate degree at La Salle University.


Jane Farran, Ph.D.

Dr. Jane Hiller Farran is the Managing Partner of C4 and Senior Fellow at Wharton Executive Education, the University of Pennsylvania. She consults with individual executives, executive teams, and with companies on executive and organizational effectiveness, executive and management development, high potential development and leading change.

Jane is on the faculty of an innovative leadership coaching experience for Wharton MBAs. She is also a faculty member in executive education programs at the Wharton School and at other select business schools.

Jane has been a consultant to industry for over 25 years. As Managing Partner of C4, she works with global companies on talent management, organizational effectiveness, team effectiveness, leadership development and executive coaching.

Her projects include coaching engagements for senior executives and high potentials, comprehensive consulting to design and construct a talent management framework, working with executive teams to enhance effectiveness, and designing and delivering development experiences and programs for senior leaders. Jane’s work with Wharton Executive Education also centers on designing, leading and teaching in development experiences/programs for senior talent in global corporations.

Matthew Graziano, MSW, Ph.D.

Dr. Graziano is an Assistant Professor in the Department of Psychology and Family Therapy at Seton Hall University. His clinical work includes group psychotherapy interventions, comprehensive neuropsychological evaluations, as well as large scale clinical and educational interventions with children, adolescents, emerging adults, and adults.

Dr. Graziano uses methods of Narrative Analysis in his research, which has been presented at conferences nationally and internationally. His work has been published in the journals Narrative Inquiry and The Journal of Homosexuality.

His clinical service includes Baruch College, the Chapin School, the Child Mind Institute, the Department of State, Foreign Service Institute, the Hudson County- New Jersey Public School System, the Knowledge is Power Program (KIPP) Charter Schools, New York University, the Rutgers University Institute for Children and Families, and the School at Columbia University.

Dr. Graziano holds his Bachelor of Arts in English, Art History, and Humanities from the University of Colorado at Boulder; Master of Social Work from Rutgers University-New Brunswick; and his Doctor of Philosophy in Counseling Psychology from New York University. He is a licensed psychologist in New York and New Jersey.

Rondalyn Kane, MPA

Rondalyn Kane is founder and president of RS Kane & Associates, a leadership development firm that specializes in executive training, leadership coaching and organizational development. Kane & Associates help leaders find their unique vision and voice to create transformative organizations.

Ms. Kane served as Deputy Director, Transition Center, at the Foreign Service Institute, United States Department of State. She was responsible for overseeing and managing the implementation of a broad range of training and counseling programs that serve in excess of 15,000 federal employees and family members annually.

Duties include development of strategic vision and annual work plans, oversight of organizational operations including hiring, budget, procurement and program management and staff development and management. Ms Kane received US Department’s Superior Honor Award in 2016 for leadership and innovation.

Deborah Kossmann, Psy.D.

Deborah Kossmann, Psy.D. is a clinical psychologist who has been in private practice with offices in Langhorne and Haverford, PA since 1989.

Dr. Kossmann earned her B.A. in English in 1982 from Arcadia University, an M.Ed. in Counseling from Temple University in 1989 and an M.A. (1993) and Psy.D. (1994) from Widener University. Prior to earning her psychology degrees, Dr. Kossmann worked in marketing and public relations at the Philadelphia Zoo and KYW Newsradio.

She has been an adjunct professor in the graduate counseling programs at both Chestnut Hill and Rosemont Colleges and has led trainings and workshops on a variety of topics. She was an alumni trustee on the board of Arcadia University for five years.

She is currently a Fellow of the Pennsylvania Psychological Association (PPA) and served for six years on the Board of the Pennsylvania Psychological Foundation (PPF), a charitable arm of PPA. She continues to serve on the PPF Education Award Scholarship Committee and is currently a member of PPA’s Ethics Committee.

Dr. Kossmann is also a Member of the Philadelphia Society of Clinical Psychologists. Her articles and poetry have won awards and have appeared in national publications including The New York Times and The Psychotherapy Networker.

Marc R. Kossmann, Psy.D.

Dr. Marc Kossmann is a clinical psychologist licensed in Pennsylvania, New Jersey, Delaware, Virginia, West Virginia, North Carolina, South Carolina, Kentucky, and Michigan. He provides clinical services in these states via the Doctor On Demand telemedicine platform.

Dr. Kossmann works with adults on a number of different specialty areas including goal planning, life transition, stress management and Mindfulness Based Stress Reduction. His expertise in group process roots back to graduate school.

He also continues to study various methodologies for teaching group processes and participates through teaching at the Foreign Service Institute at the United States Department of State.

He obtained his doctorate in psychology from The Institute for Graduate Clinical Psychology at Widener University and has worked with multiple groups on developing leadership and authoritative skills since joining the Wolper Institute team. Dr. Kossmann is bilingual in English and Italian.

Jennifer Lee, Ph.D.

Dr. Jennifer Lee is a Clinical Psychologist and Visiting Assistant Professor of Psychology at Soka University in Southern California. She teaches and mentors students in the social and behavioral sciences, and she designed an experiential course on group dynamics for the undergraduate program.

Dr. Lee has been actively involved with the group relations community for the past 15 years. She is a certified group consultant with the A.K. Rice Institute for the Study of Social Systems and has consulted at conferences both nationally and internationally.

She earned her undergraduate degree from Cornell University and her doctorate in clinical psychology from Teachers College, Columbia University.

Hope Riley, Ph.D.

Hope Riley, Ph.D. is a licensed psychologist with more than 35 years experience teaching Group Processes. Her expertise teaching about the invisible rules that govern behavior teach students to generate behavioral options which increase group performance and personal power to achieve goals.

Dr. Riley teaches Group Dynamics at US Department of State Foreign Service Institute, The Lauder Institute at Wharton, and The Tuck School of Business. She is co-founder of Seismic Consulting Group where she trains managers to increase productivity by accessing and harnessing their organization’s most powerful resources.

Dr. Riley received her BA degree from Dickinson College, and her Masters and Doctorate degrees from the University of Pennsylvania. She is a graduate of the Family Therapy Institute of Philadelphia and is certified as an EMDR therapist.

Nan Schiowitz, Ph.D.

Dr. Schiowitz is a licensed psychologist with over thirty years of clinical experience. She is a founding member of the The Brandywine Center, a private practice group in Wilmington Delaware, where she provides individual and group therapy, workshops, and consultation.

She applies her own special blend of accelerated dynamic and interpersonal therapy methods, warmth and humor to her work with clients. Her passion for group work began at the University of Pennsylvania where she developed her expertise, and began consulting to Wharton and Graduate Education Students enrolled in the Group Process course.

Additional training in Systems Centered Therapy honed her skills in using group-as-a-whole interventions to help group members learn about authority and responsibility, build connection, and learn about themselves in relation to unconscious group dynamics.

Dr. Schiowitz received her Ph.D. and M.S. degrees from the University of Pennsylvania, and a BS in Social Work from Cornell University.