Differences among Holland Types as Measured by the Hand Test: An Attempt at Construct Validation

Abstract

The Vocational Preference Inventory (VPI) and the Hand Test were administered to 120 male undergraduate students. Subjects classified into one of six Holland personality types on the basis of VPI high-point codes were found to differ significantly with respect to both the absolute and relative number of responses on certain Hand Test scoring variables. As these differences appeared to be reasonably consistent with Holland's personality theory, additional evidence was provided for the construct validity of the postulated vocational types.