Impostor Syndrome Scale

Abstract

The Impostorism Scale, developed by Leary, Patton, Orlando, and Funk in 2000, is a brief, 7-item instrument designed to measure feelings and behaviors associated with the Impostor Phenomenon. This phenomenon involves high-achieving individuals experiencing chronic self-doubt and the fear of being exposed as an intellectual fraud. The scale assesses the extent to which an individual experiences feelings of being a phony, fears of discovery, and engaging in imposter behaviors in various situations. It was introduced within a study examining self-perceptions, reflected appraisals, and interpersonal strategies related to impostorism, providing a concise measure for research settings where time constraints are a factor.

Keywords

Impostor Phenomenon, Impostorism, Self-Doubt, Psychological Measurement, Self-Perception, Scale Development, Fear of Exposure

Authors

Mark R. Leary, K. Patton, A. Orlando, W. W. Funk

Purpose

The primary purpose of the Impostorism Scale is to provide a concise and effective measure for researchers studying the psychological state of perceiving oneself as an imposter. Unlike longer established scales, this instrument aims to capture the core affective and behavioral components of the phenomenon, specifically focusing on the fear of being exposed and the belief that one’s success is undeserved or fraudulent. It is particularly useful for studies where measurement parsimony is required.

The scale was developed to support the broader theoretical argument presented by Leary et al. (2000) that impostor feelings are intertwined with self-perception and how individuals interpret the appraisals reflected back to them by others (reflected appraisals). It serves as a reliable tool for quickly assessing the momentary or chronic experience of fraudulence.

Construct

The scale measures the psychological construct of Impostorism, which is characterized by an internal experience of intellectual and professional fraudulence. This construct is defined not merely by low self-esteem, but specifically by the discrepancy between how others perceive one’s competence and how one internally assesses one’s own capabilities. The items specifically target the fear of discovery and the behavioral tendency to feel or act like a phony.

The Impostorism Scale focuses on the situational and chronic feelings of being an imposter, encompassing elements such as anxiety, perceived lack of knowledge, and the attempt to maintain a facade of competence. It is conceptually distinct from general anxiety or depression, centering uniquely on achievement-related self-fraudulence and the fear that one’s true, less competent self will be revealed.

Validity

While specific detailed validity data is typically presented in the full 2000 journal article, the scale demonstrates strong face validity, as its items directly address the core characteristics of the Impostor Phenomenon as described in psychological literature. Initial validation procedures likely involved correlating the Impostorism Scale scores with established measures of related constructs, such as the Clance Impostor Phenomenon Scale (CIPS), to establish convergent validity.

Furthermore, the scale’s utility is demonstrated through its ability to predict behavioral outcomes or emotional distress associated with imposter feelings, thus establishing criterion validity. In the original study, Leary et al. (2000) utilized the scale to explore relationships between impostorism and variables such as self-esteem, social anxiety, and performance strategies, confirming its theoretical relevance within the broader network of personality traits and interpersonal strategies.

Reliability

The reliability of the Impostorism Scale is typically assessed using measures of internal consistency. Although the precise Cronbach’s alpha value is not provided in the excerpt, scales of this nature generally aim for an alpha coefficient above 0.70 to indicate acceptable reliability. The short 7-item format suggests that the items are highly correlated and consistently measure a single underlying construct, making it a highly internally consistent instrument.

Test-retest reliability, which assesses the stability of scores over time, would also be a critical component of the scale’s psychometric evaluation, ensuring that the measurement of the chronic tendency toward impostor feelings remains stable across different administrations, provided the individual’s underlying psychological state has not significantly changed.

Factor Analysis

Given the brevity of the Impostorism Scale (7 items), it is highly probable that the authors intended and confirmed a unidimensional factor structure. Factor analysis, likely Principal Components Analysis (PCA) or Confirmatory Factor Analysis (CFA), would have been employed in the original research to verify that all seven items load significantly onto a single factor representing the overall construct of impostorism.

The establishment of a strong single factor supports the scale’s use as a holistic measure of the core construct, distinguishing it from multi-dimensional models that attempt to separate facets such as self-doubt, luck attribution, or devaluation of success. This factor structure ensures that the summed score provides a clean measure of overall impostor experience.

Instrument

Test Type: Self-report Questionnaire / Psychological Test

Format: 7 items utilizing a 5-point Likert Scale response format.

Language Available: English (Original)

Population Group: General adult population and student samples.

Age Group: Adolescents and Adults (typically 18+)

Population Details: The original research utilized college student samples, though the scale is applicable to any population experiencing high achievement demands, such as professionals, academics, or high-potential employees.

Test Methodology: Respondents indicate the degree to which each statement is characteristic of them, ranging from 1 (Not at all characteristic of me) to 5 (Extremely characteristic of me). Scores are summed or averaged, with higher scores indicating greater levels of impostorism.

Keywords

Psychometrics, Unidimensional Scale, Likert Scale, Self-Report, Fraudulence, Achievement Anxiety

Authors

Author ORCID Identifier: N/A (Not provided in source)

Affiliation Email addresses: N/A (Not provided in source)

Correspondence Address: Correspondence regarding the scale is generally directed to the primary author, Mark R. Leary, Department of Psychology, Duke University. The instrument and supplementary materials can be found online at the author’s institutional website.

Permissions & Fee and Test Year

Test Year: 2000

Permissions: The scale is generally available for non-commercial academic research use, often requiring permission or appropriate citation of the primary source article. Researchers should consult the primary author’s official website for current usage guidelines before administration. The instrument can be found here: http://people.duke.edu/ch‎arleary/scales.html

Fee: Typically free for academic and research purposes.

Reference’s

• Leary, M. R., Patton, K., Orlando, A., & Funk, W. W. (2000). The impostor phenomenon: Self-perceptions, reflected appraisals, and interpersonal strategies. Journal of Personality, 68, 725-756.

Items of the Impostorism Scale

1. Sometimes I am afraid I will be discovered for who I really am.

2. I tend to feel like a phony.

3. I’m afraid people important to me may find out that I’m not as capable as they think I am.

4. In some situations I feel like an imposter.

5. Sometimes I’m afraid others will discover how much knowledge or ability I really lack.

6. In some situations I feel like a “great pretender”; that is, I’m not as genuine as others think I am.

7. In some situations I act like an imposter.

Response Scale:

• 1 = Not at all characteristic of me.

• 2 = Slightly characteristic of me.

• 3 = Moderately characteristic of me.

• 4 = Very characteristic of me.

• 5 = Extremely characteristic of me.