Effects of Job Redesign: A Field Experiment1

A telephone company project to redesign the job of directory assistance operator was: studied in order to determine the effects on workers of “job enrichment” programs. The change increased the amount of variety and the decisionmaking autonomy in the operator's job. However, no change in work motivation, job involvement, or growth need satisfaction occurred as a result of the changes; instead, the changes had a significant negative impact on interpersonal relationships. After the changes, the older employees reported less satisfaction with the quality of their interpersonal relationships, and those supervisors whose jobs were affected by the changes reported less job security and reduced interpersonal satisfaction. Implications of these findings for the theory of job redesign proposed by Hackman and Lawler (1971) are discussed.