Any product which is not used correctly runs the risk of getting a bad name, even though it is of good quality. The public recognizes it by the friendly, young people who hand out questionnaires on the street, or invite you to come into the Dianetics or Scientology Center to take the test. A personality test is a process by which marked characteristics, such as degree of nervousness or creative ability, are brought to light by answering a series of questions. That is how simple it was in those days. Personality tests should help to evaluate people, to diagnose possible future developments, to bring out strengths, to look more closely into problem areas, or simply to get a picture of a person.
Tests can also be of use for the person being tested.
He can gain new perceptions of himself, or confirm those talents with which he is already familiar. On the other hand, personality tests are not infallible, and probably never will be. Ideally, one could tell how nervous a person is with a few questions. Since that is not possible, many questions are asked in the area of nervousness. The sum of the answers should make possible a conclusion with regards to the degree of nervousness.