A great deal of business expense is spent on training. While some employers worry about the money spent on training when people leave, more successful bosses worry about what happens if untrained people stay. But how do we know what our people know? Assessment, of course. But does it work? Try these simple tests. Ask your most valued employee to do the test. Do they get a perfect score? If not, it is the test that is wrong. Ask your most valuable supervisor to review the test. Is this what we want our people to know and do? If the answer is no, the assessment is not working. Ask your newly trained employee to redo the test six weeks later. Be prepared to be shocked. Using the techniques in this book will put you on a path to assessments that work. But you will still need the help of your valued employees and valuable supervisors to get it right.