My first book, a collaboration with Dr. Larry Lewandowski, reviews the scientific research literature on testing accommodations, to develop a framework for decision making. We also discuss issues of universal design in testing, as well as the relationship between accommodations and intervention.

I collaborated with Professor David Hothersall (emeritus at The Ohio State University) on the latest edition of this textbook, a biographical approach to psychology’s pioneers.

My latest book is a brief, friendly introduction to psychometrics (the science behind psychological and educational testing). My goal was to write a primer for professionals (school psychologists, educators, counselors, etc.) who use diagnostic tests and need to know to select tests and interpret scores properly.