Dynamic assessment embeds interaction within the framework of a test-intervene-retest approach to psychoeducational assessment. This book offers an introduction to diagnostic assessors in psychology, education, and speech/language pathology to the basic ideas, principles, and practices of dynamic assessment. Most importantly, the book presents an array of specific procedures developed and used by the authors that can be applied to clients of all ages in both clinical and educational settings. The authors discuss their approach to report-writing, with a number of examples to demonstrate how they incorporate dynamic assessment into a comprehensive approach to assessment. The text concludes with a discussion of issues and questions that need to be considered and addressed. Two appendixes include descriptions of additional tests used by the authors that are adapted for dynamic assessment, as well as information about dynamic assessment procedures developed by others and sources for additional information about this approach.