Yes Virginia, there is an objective reality in job analysis

Article Abstract:

Research investigating the differences between job analysis and job specification is presented. Particular attention is given to critical views on the theory of job analysis developed by J.J. Sanchez and E.L. Levine in Journal of Organizational Behavior 21.

Criticism and interpretation, Levine, E.L., Sanchez, J.J.

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Repeating items to estimate the test-retest reliability of task inventory ratings

Article Abstract:

Little is known about the test-retest reliability of task inventories. Because they typically take hours to complete and require rating hundreds of job tasks, repeating an entire inventory after a short interval is unlikely to produce motivated raters; conversely, increasing the time interval between administrations may result in actual changes in job content that would underestimate the true reliability. By repeating only a portion of the inventory with a very small test-retest interval, rater motivation should not be seriously affected, and changes in job content can be ruled out as a determinant of the results. The repeated item approach was used on 207 respondents and 3 task inventories. For most of the rating scales studied, reliabilities were slightly lower (.70s to .80s) than those reported in a previous study (.90s). (Reprinted by permission of the publisher.)

Research, Human resource management, Management research, Task analysis

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