This thesis was conducted to empirically examine and compare the different conceptualizations of the integrity test construct identified in previous research. The conceptualizations assert that integrity tests measure a major trait (i.e., Conscientiousness or Honesty-Humility), a combination of major traits, or a combination of minor traits (personality facets). The general fit and predictive validity (of counterproductive work behavior, or CWB) of each conceptualization was tested.
Psychology undergraduates (N = 436) participated via online surveys containing two personality scales, two integrity tests, and a CWB scale. The results most support the conceptualizations of integrity as either solely the broad trait Conscientiousness or a combination of Conscientiousness, Agreeableness, and Neuroticism. Statistical issues were encountered with the models of several conceptualizations due to the number of predictors used and high multicollinearity between them. A closer examination revealed that integrity tests mostly encompass behaviors typically associated with the traits Conscientiousness and Agreeableness.