The psychometric properties of the Clance Impostor Scale

The Clance Impostor Phenomenon Scale was designed to measure the concept that individuals are successful by external standards but have an illusion of personal incompetence. The scale assesses components of the phenomenon such as ideas about self-doubt and achieving success by chance. Psychometric properties of the scale were examined based on a sample of engineering college students. Internal consistency reliability and construct validity via confirmatory factor analysis were examined. The scale scores had satisfactory internal consistency reliability. Confirmatory factor analysis revealed that the original theoretical model may be problematic and the factor structure requires additional consideration. Implications and future directions are discussed.