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Updated: Aug 21, 2026

Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
Published on: September 11, 2021
A psychometric evaluation of the Harvey Imposter Phenomenon Scale
Chan M Hellman1, Tonia D Caselman
1Applied Research Center, Department of Human Relations, The University of Oklahoma Tulsa--Schusterman Center, Tulsa 74135, USA. chellman@ou.edu
Abstract:
In this article, we present psychometric properties on the 14-item Harvey Imposter Phenomenon (IP) Scale (Harvey, 1981) among a sample of U.S. adolescents (N = 136). Item analyses, internal consistency reliability, and principal components analysis (PCA) were computed to assess the reliability and factor structure of the IP scores. Although the internal consistency reliability (e.g., Cronbach's alpha) was reasonably acceptable (alpha =.70), the item analyses and subsequent PCA suggest concern for the content homogeneity and factor structure of composite scores obtained from the 14-item measure. The results of this study suggest that the indiscriminate use of the Harvey IP Scale is cautioned relative to the insufficient psychometric properties.
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