The validation of the English Impostor-Profile 30 and the exploratory formulation of the learned helplessness model of the impostor phenomenon.

The learned helplessness model of the Impostor Phenomenon is an exploratory approach to explain the Impostor Phenomenon by linking the constructs of growth mindset, learned helplessness, grit, thought-action fusion, and defensive pessimism. In this study, we (a) confirmatorily tested the factor structure of the English IPP30, (b) examined the instrument's nomological validity, and (c) exploratorily formulated a path model to explain the effects of learned helplessness on the Impostor Phenomenon. The sample consisted of n = 376 persons (46% female). The CFI indicated the bifactorial model of the English IPP30 as best-fitting, while the subscale correlations suggested the instrument's nomological validity. The exploratory path model showed sufficient goodness of fit. It proclaims a labeling as talented that decreases the growth mindset expression, which negatively correlates with learned helplessness. In addition, the model states learned helplessness as a central model component associated with grit, thought-action fusion, and finally, the Impostor Phenomenon.