We propose the recently introduced implicit measure of psychological capital (PsyCap), the Implicit Psychological Capital Questionnaire (I-PCQ; Harms & Luthans, 2012), can provide a needed valid alternative to the self-report Psychological Capital Questionnaire (PCQ). We explain the development of the I-PCQ items, assess the structural validity of the instrument, test its vulnerability to response distortion, and assess its capacity to predicting work attitudes and behaviors vis-à-vis the PCQ and Big Five personality facets. We found that the I-PCQ demonstrated acceptable structural validity that was consistent with and added to prior theorizing, was resistant to response distortion, and predicted work outcomes above and beyond the widely used self-report PCQ and Big Five personality traits. We conclude that the I-PCQ represents a valid, easily administered measure of psychological capital that minimizes problems associated with self-reports and is appropriate for use in work settings.
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