It is imperative that counselors understand how to critically evaluate assessments before using them to make clinical decisions. This evaluation can be conducted through integrating the 5 sources of validity. Each source of validity is discussed, along with methods to appraise psychometric quality, throughout this special issue.

This fact sheet provides answers to frequently asked questions about psychological evaluations for infants, children and adults who are deaf-blind, we hope to clarify the evaluation process and the active roles that may be taken by everyone who is involved--family members, professionals, educators, and the student. Finally, by discussing quality…