A meta-analysis of age differences in job performance.

In a meta-analysis, 40 samples were classified into 3 categories according to the types of performance measures used: (a) supervisory ratings, (b) peer ratings, and (c) individual productivity. Results show a pattern of increases in performance, as measured by productivity indices, at higher ages. Conversely, supervisory ratings showed a slight tendency to be lower for older employees. Performance ratings showed more positive relations with age for professionals than for nonprofessionals. Implications concerning personnel policies regarding older employees are discussed. (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)