Mark E. Swerdlik, Ph.D., ABPP, is Professor of Psychology at Illinois State University,where he has taught the undergraduate psychological measurement course, conducted professional seminars addressing legal/ethical issues in assessment, and supervised practicum students in assessment. He has served as an editorial board member of several journals, written test reviews for several journals, reviewed test-scoring software for a major test publisher, and served as a reviewer for the Mental Measurements Yearbook.In various professional capacities, he has participated in the standardization of many psychological tests, including, for example, the WISC-R, the WISC-III, the Kaufman Assessment Battery for Children (K-ABC), the Stanford-Binet IV, the Peabody Picture Vocabulary Test (PPVT), the Kaufman Test of Educational Achievement, the Vineland Adaptive Behavior Scale, the Psychological Processing Checklist (PPC), and the Psychological Processing Checklist-Revised (PPC-R). As a licensed clinical psychologist,a nationally certified school psychologist, independent practitioner, and consultant,Dr. Swerdlik administers and interprets psychological tests, and conducts seminars to train fellow professionals in proper test administration, scoring, and interpretation procedures. He has also served as a program evaluator for many programs, a partial listing of which would include the Heart of Illinois Low Incidence Association (HILA),the Autism/Pervasive Developmental Delays Training and Technical Assistance Project, and the Illinois National Guard Statewide Reintegration Program for Combat Veterans(for veterans who served in Iraq and Afghanistan, from 2006 to the present).