Assessment centers are standardized because testing conditions are similar for all candidates. This standardization insures that no candidate receives better or worse treatment than another. Assessment centers are fair to minorities and women. Unlike some testing programs, research has suggested that a candidate's race or sex has no influence on the assessment ratings received. Assessment centers have been found to be well-accepted and seen as a fair promotional method by most candidates.
Assessment centers serve as a learning experience for assessors as well as for candidates.
Assessors benefit from their training and experience as assessors, which can be seen as a management training tool that helps them improve their observational skills and ability to accurately evaluate performance. Candidates benefit from the experience they receive by going through the center. Their strong areas and areas in need of improvement are identified and may be discussed with them. Assessment center ratings tend to be much more accurate than conventional ratings because the assessment center provides an opportunity for direct observation of behavior in a controlled setting by trained raters. Judgements about behavior are made from specially developed assessment simulations.