Human Development

The Human Development Program provides information, skill training and support to parents and others who work with children, youth and families. Human Development information is disseminated through workshops, professional seminars, publications, exhibits, print, radio/television and the Internet. Professional development opportunities are offered to professionals and paraprofessionals, including educators, librarians, youth leaders, and human service personnel who work with families.

CCE offers workshops for parents and professionals at its Education Center on Griffing Avenue in Riverhead, at the Suffolk County Farm and Education Center in Yaphank, and at community sites throughout Suffolk County on a year-round basis.

Our Team Members

Our Human Development Team consists of human development specialists, parent educators and a marketing specialist.

Nancy Olsen-Harbich is the coordinator for the Human Development Program. She has been a human development specialist with Cornell Cooperative Extension of Suffolk County since 1985. Nancy has her B.S. from Cornell University and her master’s degree from SUNY Stony Brook. Her area of expertise is early childhood development and education.


Kerri Kreh Reda is a child development educator specializing in infant-toddler development. Kerri works closely with parents of children three years and younger, focusing on brain development, temperament, language development, discipline and toilet learning. Kerri has a B.A. in human development from Eckerd College, Florida and a master’s degree in maternal and child health from the University of South Florida.


Maxine Roeper Cohen is a parent educator who specializes in parent/toddler workshops at Suffolk County libraries. Maxine earned a B.S. in human development from Cornell University and a M.S. in education from Syracuse University. Maxine has served as an adjunct assistant professor in psychology at Touro College, and as a career counselor at SUNY Stony Brook.


Dinah Castro is a family well-being educator whose focus is to provide information on nutrition and parent education to parents of young children. Dinah holds a B.S. from Cornell University and provides programming for both English and Spanish-speaking audiences. Dinah has been working with Cornell Cooperative Extension’s diabetes education program as an outreach worker primarily in Suffolk County Health Centers.


Tim Jahn is a parent educator specializing in youth development focusing on the preteen and teen years. He earned his B.S. in education from St. John’s University and his M.Ed in human development from the University of Vermont.