A new look at within-source interrater reliability of 360-degree feedback Ratings

• Main Authors: Greguras, Gary J., Robie, Chet
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 1998
• Subjects: Interrater agreement; Professional evaluation; Comparative study; Supervisor; Peer review; Hierarchic relation; Feedback regulation; Human; Human Resources Management; Organizational Behavior and Theory
• Online Access: https://ink.library.smu.edu.sg/lkcsb_research/2150; https://ink.library.smu.edu.sg/context/lkcsb_research/article/3149/viewcontent/Within_Source_interrater_1998_pv.pdf
• Institution: Singapore Management University

This study investigated within-source interrater reliability of supervisor, peer, and subordinate feedback ratings made for managerial development. Raters provided 360-degree feedback ratings on a sample of 153 managers. Using generalizability theory, results indicated that little within-source agreement exists; a large portion of the error variance is attributable to the combined rater main effect and Rater X Ratee effect; more raters are needed than currently used to reach acceptable levels of reliability; supervisors are the most reliable with trivial differences between peers and subordinates when the numbers of raters and items are held constant; and peers are the most reliable, followed by subordinates, followed by supervisors, under conditions commonly encountered in practice. Implications for the validity, design, and maintenance of 360-degree feedback systems are discussed along with directions for future research in this area.