Testing for selection purposes were first used by the ancient Chinese. Modern practice of scientifically evaluating the validity of selection assessments did not begin until the early 1900s. As selection research proliferated throughout the 20th century, several key developments influenced test validation. The following points are worth noting:
  1. The Civil Rights Act of 1964 outlined the need for fair selection practices (amended Act in Title VII)
  2. This established the Equal Employment Opportunity Commission (EEOC).
  3. The EEOC and other enforcement agencies issued the Uniform Guidelines on Employee Selection Procedures in 1978.
  4. The Uniform Guidelines remain the defining legal guidelines in personnel selection to the present day.
  5. The Uniform Guidelines served to solidify the fundamental role of test validation in personnel selection from a legal perspective.
  6. The Society for Industrial and Organizational Psychology (SIOP) published the first edition of the Principles for the Validation and Use of Personnel Selection Procedures in 1975 in order to outline best professional practices in this area.
  7. The SIOP published the fourth edition of the Principles in 2003, which now serves as the definitive set of professional guidelines in this area.