Royer F. Cook, Ph.D. - President
Rebekah K. Hersch, Ph.D. - Vice-President
Tracy L. McPherson, M.S., ABD - Senior Research Associate
Allison Crable, B.A. & April Hendrickson, B.A. - Research Assistants
Global Learning Systems- Bethesda www.globallearningsystems.com
201 North Union Street, Suite 330
Alexandria, Virginia 22314
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