Constructs and developmental assessment centers: Further troubling empirical findings

Research indicates that assessment center (AC) ratings typically demonstrate poor construct validity; that is, they do not measure the intended dimensions of managerial performance (e.g., Sackett & Harris, 1988). The purpose of this study was to investigate the construct validity of dimension ratings from a developmental assessment center (N=102), using multitrait-multimethod analysis and factor analysis. The relationships between AC ratings, job performance ratings, and personality measures also were investigated. Results indicate that the AC ratings failed to demonstrate construct validity. The ratings did not show the expected relationships with the job performance and personality measures. Additionally, the factors underlying these ratings were found to be the AC exercises, rather than the managerial dimensions as expected. Potentially, this lack of construct validity of the dimension ratings is a serious problem for a developmental assessment center. There is little evidence that the managerial weaknesses identified by the AC are the dimensions that actually need to be improved on the job. Methods are discussed for improving the construct validity of AC ratings, for example, by decreasing the cognitive demands on the assessors.