Abstract
This paper is a response to studies reporting low correlations between occupational interest scores on same-named scales from the Strong Vocational Interest Blank, the Minnesota Vocational Interest Inventory, and the Kuder Occupational Interest Survey. The differences in the rationale, methods of scale development, and meaning of scores on the various inventories are seen as imposing certain upper limits of correlation, even if errors of measurement are not considered. More appropriate methods to use in comparing results from the different inventories are discussed.

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