The document discusses the selection process and various types of tests used in hiring. It defines selection as differentiating between applicants to identify those most likely to succeed in a job. The selection process involves screening applicants for key qualifications and determining who is most promising. Tests mentioned include references, paper-and-pencil tests to assess skills, physical ability tests, performance tests to evaluate current abilities, and interviews which are preferably structured to reduce bias. Various types of tests used in selection are then outlined, such as achievement, aptitude, interest, personality, and situational tests.