The MACH-IV was investigated (N = 528) with item response theory to elucidate its psychometric properties and suggest a trimmed version, the MACH*. The core content of the MACH-IV seemed to be cynicism/misanthropy and the MACH* was formed from the 5 most informative and precise MACH-IV items. The MACH* showed good internal consistency and construct and criterion validity comparable to the MACH-IV. The MACH-IV and MACH* measure most precisely at average to above average levels of Machiavellianism. Implications for theory and measurement of Machiavellianism are discussed. © 2013 Copyright Taylor and Francis Group, LLC.
CITATION STYLE
Rauthmann, J. F. (2013). Investigating the MACH-IV with item response theory and proposing the trimmed MACH. Journal of Personality Assessment, 95(4), 388–397. https://doi.org/10.1080/00223891.2012.742905
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