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2 A generally satisfactory definition of risk has not yet been proposed (see further the discussion by Coombs & Huang, 1970). Consequently, we will follow the conventions prevalent in the group decision literature.

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In a study of the relations of staffing sufficiency to a variety of job enrichment constructs, eighty-three supervisors provided data on job-related attitudes and the extent of workgroup staffing sufficiency. Trend analysis provided support for a proposed curvilinear relation between staffing sufficiency and certain job enrichment constructs. In addition, moderate support was also obtained for Greenberg's (1979) proposal that moderate understaffing is optimally related to reactions to one's job. The potential of this research area for the understanding of enrichment processes is proposed.