The Work Preference Inventory (WPI) is designed to assess individual differences in
intrinsic and extrinsic motivational orientations. Both the college student and the
working adult versions aim to capture the major elements of intrinsic motivation (self-determination,
competence, task involvement, curiosity, enjoyment, and interest) and extrinsic motivation
(concerns with competition, evaluation, recognition, money or other tangible incentives,
and constraint by others). The instrument is scored on two primary scales, each subdivided
into 2 secondary scales. The WPI has meaningful factor structures, adequate internal
consistency, good short-term test-retest reliability, and good longer term stability.
Moreover, WPI scores are related in meaningful ways to other questionnaire and behavioral
measures of motivation, as well as personality characteristics, attitudes, and behaviors.