What are psychological tests? What ethical issues are involved in the use of psychological testing? How are psychological testing and psychological assessment related? This engagingly written guide answers these questions and supplies the information needed to administer, evaluate, and understand tests. Starting with a basic introduction to psychological tests, their historical development, and their uses, Essentials of Psychological Testing covers the statistical procedures most frequently used in testing, the frames of reference for score interpretation, reliability, validity, and test item considerations, as well as guidelines for test selection, administration, scoring, and reporting test results. In addition, each concise chapter features numerous callout boxes highlighting key concepts, bulleted points, and extensive illustrative material, as well as "Test Yourself" questions that help to gauge and reinforce readers grasp of the information covered. This new edition: Incorporates changes from the revised Standards for Educational and Psychological Testing. Includes updated examples using the most recent versions of tests. Provides discussion of new important test administration technologies such as the Q-Interactive.