One common error made by recruiters is to adopt some readily available intelligence or psychological test that may be inappropriate for selecting field salespeople. Better results are achieved when test are tailor-made by testing experts and human resource specialists for the needs of a particular firm or industry. It is also important to base the test on an analysis of the job in question and to validate the relationship between test scores and subsequent job performance. Comparing scores of the most successful and least successful salespeople currently employed by the firm is a frequently used validation method. A word of caution is recommended, however. Such tests should only be used as a part of the selection process, not as the sole decision criterion. There is little statistical evidence that these tests successfully discriminate between future high-and low-performing salespeople. One reason may be that candidates provide responses they think management want, and thus their answers may not be an accurate reflection of the person's feelings or behaviors.