- 経営行動科学 (ISSN:09145206)
- vol.13, no.2, pp.113-123, 1999-11-20
Organization image, defined as psychological reproduction of organization made by individual who is a member of or is involved in the organization, has been less examined in the past research. Instead, quite a few research dealing with "non-membership" image, which was built by non-member or non-involved person of the organization, have been conducted. It is inconsistent with the definition of image literally, which has an affinity for impression toward object. In this article, we developed a new scale to measure membership image of organization, tested its reliability and validity, and revealed item characteristics of the scale items using graded response model of Item Response Theory (IRT). Questionnaire survey was executed to 3,412 university, college, or junior college students who were informally promised their first job employment. Results of exploratory factor analysis showed that factor structure was consistent with the notion on which the scale was based, and discriminant validity of the scale and reliability of each subscale yielded as high. Results brought by IRT analyses also showed general tendencies that each value of item characteristics parameter emerged high in discriminant and relatively low in difficulty. Further discussion was made about (1) dimensionality of the scale and its overall feasibility; (2) psychodynamic account for organizational image; and (3) future direction to improve validity of the scale.