Differentiating Conscientious from Indiscriminate Responders in Existing NEO-Five Factor Inventory-3 Data

Publication date: Available online 21 May 2019Source: Journal of Research in PersonalityAuthor(s): Zdravko Marjanovic, Ronald R. HoldenAbstractThe mean Inter-Item Standard Deviation (M-ISD; i.e., the mean of several single-scale ISDs) is a post-hoc validity index that statistically differentiates conscientious responders (CRs) from indiscriminate responders (IRs) in psychological questionnaire data. We compared the M-ISD’s effectiveness against four other post-hoc indexes and an embeddable validity scale in three sets of NEO-Five-Factor Inventory-3 data. Results showed the M-ISD has superior classification ability over all other post-hoc indexes and even outperformed the embeddable validity scale. The average classification accuracy of the M-ISD and embeddable scale was 97% and 93%, respectively, whereas only one of the four remaining post-hoc indexes exceeded our classification accuracy criterion of 80%. These findings suggest researchers can use the M-ISD to differentiate valid from invalid data.

Source: Journal of Research in Personality - May 22, 2019 Category: Psychiatry & Psychology Source Type: research