The future of partial correlation as a means to reduce halo in performance ratings

Abstract

Examines the practice of statistically controlling for halo effects in performance ratings. It is argued that there are 2 major problems with the partial correlation approach to removing halo from ratings data. First, the correct use of the technique depends on the validity of specific causal assumptions regarding the rating process that have not received empirical evaluation to date. The 2nd problem concerns analytic procedures employed in previous tests of the partialing approach. Reanalysis of data reported by F. Landy et al (see record 1981-00274-001 ) indicates that previous conclusions regarding the effectiveness of partialing may have been artifacts of the way the data were analyzed. It is felt that criticisms of the partial correlation approach to halo reduction are sufficient to suggest suspension of its use in any nonresearch context until necessary additional research is performed. (13 ref) (PsycInfo Database Record (c) 2025 APA, all rights reserved)