Investigating the MACH-IV with item response theory and proposing the trimmed MACH

  • Rauthmann J
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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.

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  • John F. Rauthmann

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