ERICA M. LaFORTE is a psychometrician with more than 25 years in the field of educational test development. She is Head of Test Development at Marker Learning, and is a co-author of the Woodcock-Johnson V. NANCY MATHER is a Professor Emerita at the University of Arizona in Tucson. She is the co-author of Essentials of Dyslexia: Assessment and Intervention, Second Edition. She is also a co-author of the Woodcock-Johnson V. W. JOEL SCHNEIDER is a Professor at Temple University in both the School of Psychology and Counseling Psychology Programs. He is a co-author of Essentials of Assessment Report Writing, Second Edition, and Psychological Testing and Assessment.