Journal of Personality Assessment · 2022 · 15 citations · 29 references
Social SciencesBehavioral SciencesPsychologyPersonality PsychologyPsychometricsScale DevelopmentPersonality AssessmentPersonality TraitsPsychological AssessmentPsychological TestingTest ReliabilityTrait TheoryConstruct ValidityDark Triad Personality TraitsPersonality Trait MeasurementPersonality Trait ValidityPsychometric Assessment ValidityPsychometric ReliabilitySelf-report Measures Of PersonalityTest-retest Reliability
Despite the widespread use of the Dirty Dozen (DD) and Short Dark Triad (SD3) as inventories for antagonist personality constructs, appropriately powered studies on their test-retest reliability (rtt) are lacking. We report the 12-day rtt-s of the DD and SD3 scales. Leveraging the test-retest data, we also calculated their convergent and discriminant correlations while controlling for measurement error. Median rtt-s were .87 and .90 (N = 500) for the DD and SD3 scales, respectively, substantially higher than their internal consistencies. Convergent correlations were .77, .63 and .64 for Machiavellianism, Narcissism and Psychopathy, respectively. Discriminant correlations between the Machiavellianism and Psychopathy scales had a median of .65, pointing to their being effectively indistinguishable traits in the SD3 and DD. The DD and SD3 items had median rtt-s of .69 and .71, respectively. We emphasize the importance of the rtt for scale development and validation.
29
Coefficient Alpha and the Internal Structure of Tests
Lee J. Cronbach · Psychometrika · 1951 · 43.2K citations · Full text
Social Sciences, Educational Assessment, Educational Measurement +14
The weirdest people in the world?
Joseph Henrich, Steven J. Heine, Ara Norenzayan · Behavioral and Brain Sciences · 2010 · 12.1K citations