A meta-analysis was conducted on job demands, resources, and attitudes and their relation with burnout in regard to the COR theory. The version of the Maslach Burnout Inventory used was explored as a moderator of the aforementioned variables. Results suggest that higher demands, lower resources, and lower adaptive organizational attitudes are associated with burnout. In particular, results of the current study show stronger relations than previous meta-analysis (Lee & Ashforth, 1996) have suggested. The scale type also provided some evidence of moderation, with stronger effects found in samples that utilized the MBI-HSS. Implications of the findings in relation to the COR theory and future research directions to clarify the relation between job demands, job resources, organizational attitudes and burnout are discussed. (Contains 5 tables.)