Introduction: USMaP-i is an English, 66-item self-administered inventory, consisting of personality
(60 items, 5 factors) and faking (one factor) components, which was mainly developed to measure
personality traits among Malaysian students based on local cultures and values. The personality
component was based on the Big Five dimensions as suggested by numerous personality researchers.
Previous exploratory studies showed promising validity, reliability and stability of USMaP-i.
Objective: To provide further validity evidence of USMaP-i for use among medical degree program
applicants by confirmatory factor analysis (CFA). Methods: Data were collected as a part of screening
of medical degree program applicants for year 2010–2013 intakes in Universiti Sains Malaysia
(USM), of which 657 cases were suitable for analyses following a data screening measures. CFA was
performed by bootstrap maximum likelihood estimation due to non-normality of items at multivariate
level. Results: Although the revised five-factor model of personality showed good model fit (X2(df) =
144.36(55), P-value < 0.001; CFI = .944, TLI = .921; RMSEA = .050; SRMR = .032, Bollen-Stine
bootstrap P-value = 0.004), the reliability of the factors is very poor (composite reliabilities (CR) =
.483 to .650). In contrast, the unidimensional faking component exhibited good model fit (X2(df)
= 14.15(5), P-value = 0.015; CFI = .984, TLI = .968; RMSEA = .053; SRMR = .011, BollenStine
bootstrap P-value = 0.068) and factor reliability (CR = 0.731). Conclusion: The personality
component should be revised and revalidated due to poor reliability, despite showing good model fit.
In contrast, the faking component showed good model fit and reliability. Further validation studies are
recommended before its use among medical degree program applicants.