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Peer-reviewedCC BY 4.0Frontiers in Psychology

The Arabic Leary Impostorism Scale: initial psychometric evaluation in a university student population

  • Nasser M. AbuDujain1
  • Ahmed Alswailem2
  • Saif K. Alotaibi2
  • Mohammed Hamad Alhumud1,3
  • Joud S. Almutairi1
  • Haytham I. AlSaif1
  • Safaa A. Hakami4
  • Max P. Jansen5,6
  • Turky H. Almigbal1
6 affiliations
  1. 1Department of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
  2. 2College of Medicine, King Saud University, Riyadh, Saudi Arabia
  3. 3School of Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom
  4. 4University Medical Center, King Abdullah bin Abdulaziz University Hospital, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
  5. 5Faculty of Social Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
  6. 6Institute for Empirical Analytical Research (InFER), Goethe University Frankfurt, Frankfurt am Main, Germany
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Abstract

Background: The Leary Impostorism Scale (LIS) is a brief established instrument designed to assess impostorism; however, no validated Arabic version is currently available. This study aimed to translate, culturally adapt, and evaluate the psychometric properties of the Arabic LIS among university students.

Methods: A cross-sectional validation study was conducted among Arabic-speaking university students in Saudi Arabia. Participants completed the Arabic LIS and comparator measures of impostorism, self-efficacy, and perfectionism. Psychometric evaluation included internal consistency, exploratory and confirmatory factor analyses, construct and concurrent validity, and test–retest reliability.

Results: A total of 185 participants with complete LIS data were included in the psychometric analyses. The Arabic LIS demonstrated excellent internal consistency (Cronbach’s α = 0.93; McDonald’s ω = 0.93). Factorability indices supported factor analysis [KMO = 0.90; Bartlett’s χ2(21) = 1536.59, p < 0.001]. Exploratory factor analysis based on polychoric correlations supported a single-factor structure, with factor loadings ranging from 0.81 to 0.94 and an eigenvalue of 5.45. Confirmatory factor analysis showed statistically significant freely estimated loadings (p < 0.001), with standardized loadings ranging from 0.78 to 1.00; global fit indices were χ2(14) = 105.39, CFI = 0.91, TLI = 0.87, RMSEA = 0.19 (90% CI [0.16, 0.22]), and SRMR = 0.06. Strong positive correlations were observed with the CIPS-20 (r = 0.76), CIPS-10 (r = 0.77), and IPSS-3 (r = 0.66), whereas weaker correlations were found with general self-efficacy (r = 0.20) and perfectionism (r = 0.16–0.18). Test–retest reliability was moderate among 14 participants retested after 1–4 weeks (Pearson r = 0.65; ICC = 0.65).

Conclusion: The Arabic LIS demonstrated high internal consistency and promising initial evidence of validity as a brief measure of impostorism among Arabic-speaking university students. Further evaluation of its factor structure and temporal stability in a broader population is warranted.

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Cite

BibTeXRIS
BibTeX
@article{abudujain2026arabic,
  title = {{The Arabic Leary Impostorism Scale: initial psychometric evaluation in a university student population}},
  author = {Nasser M. AbuDujain and Ahmed Alswailem and Saif K. Alotaibi and Mohammed Hamad Alhumud and Joud S. Almutairi and Haytham I. AlSaif and Safaa A. Hakami and Max P. Jansen and Turky H. Almigbal},
  journal = {Frontiers in Psychology},
  year = {2026},
  month = oct,
  doi = {10.3389/fpsyg.2026.1973835},
  url = {https://doi.org/10.3389/fpsyg.2026.1973835},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - The Arabic Leary Impostorism Scale: initial psychometric evaluation in a university student population
AU  - Nasser M. AbuDujain
AU  - Ahmed Alswailem
AU  - Saif K. Alotaibi
AU  - Mohammed Hamad Alhumud
AU  - Joud S. Almutairi
AU  - Haytham I. AlSaif
AU  - Safaa A. Hakami
AU  - Max P. Jansen
AU  - Turky H. Almigbal
PY  - 2026
DA  - 2026/10/21
JO  - Frontiers in Psychology
DO  - 10.3389/fpsyg.2026.1973835
UR  - https://doi.org/10.3389/fpsyg.2026.1973835
AB  - Background: The Leary Impostorism Scale (LIS) is a brief established instrument designed to assess impostorism; however, no validated Arabic version is currently available. This study aimed to translate, culturally adapt, and evaluate the psychometric properties of the Arabic LIS among university students.  Methods: A cross-sectional validation study was conducted among Arabic-speaking university students in Saudi Arabia. Participants completed the Arabic LIS and comparator measures of impostorism, self-efficacy, and perfectionism. Psychometric evaluation included internal consistency, exploratory and confirmatory factor analyses, construct and concurrent validity, and test–retest reliability.  Results: A total of 185 participants with complete LIS data were included in the psychometric analyses. The Arabic LIS demonstrated excellent internal consistency (Cronbach’s α = 0.93; McDonald’s ω = 0.93). Factorability indices supported factor analysis [KMO = 0.90; Bartlett’s χ2(21) = 1536.59, p < 0.001]. Exploratory factor analysis based on polychoric correlations supported a single-factor structure, with factor loadings ranging from 0.81 to 0.94 and an eigenvalue of 5.45. Confirmatory factor analysis showed statistically significant freely estimated loadings (p < 0.001), with standardized loadings ranging from 0.78 to 1.00; global fit indices were χ2(14) = 105.39, CFI = 0.91, TLI = 0.87, RMSEA = 0.19 (90% CI [0.16, 0.22]), and SRMR = 0.06. Strong positive correlations were observed with the CIPS-20 (r = 0.76), CIPS-10 (r = 0.77), and IPSS-3 (r = 0.66), whereas weaker correlations were found with general self-efficacy (r = 0.20) and perfectionism (r = 0.16–0.18). Test–retest reliability was moderate among 14 participants retested after 1–4 weeks (Pearson r = 0.65; ICC = 0.65).  Conclusion: The Arabic LIS demonstrated high internal consistency and promising initial evidence of validity as a brief measure of impostorism among Arabic-speaking university students. Further evaluation of its factor structure and temporal stability in a broader population is warranted.
SN  - 1664-1078
ER  -