This is the third edition of a classic and comprehensive reference guide to the theory and practice of organizational tests. It had been updated to address modern approaches to testing and simplified computations. Designed specifically for training professionals who need to better understand how to develop criterion-referenced tests, this book offers step-by-step guidance for dealing with crucial decisions such as how to make and defend assessment decisions, how to show that those graduates certified as masters are truly masters, and how to administer accurate pilot tests. This resource covers: basic philosophies of testing; methods of test interpretation; test construction; test validation; test administration; test items and rating scales; scoring and interpretation; and legal and liability issues of testing.