Measurement Refinement of Disgust Instruments / by Flavio Azevedo

[Stage: Conducting exploratory data analysis. Funds for data collection secured]

In collaboration with Josh Tybur and Yoel Inbar, I am conducting exploratory analysis on Disgust Instruments with Item Response Theory. The three disgust instruments are: Three-Domain Disgust Scale (TDDS),  The Disgust Scale - Revised (DS-R), and Perceived Vulnerability to Disease (PVD). We believe that carrying out such analysis on the key instruments used in the behavioral immune system literature could lead to the development of a measure that captures the latent construct measured by all three scales - i.e., a new "Behavioral Immune System" scale. After the exploratory analysis is performed, we intend to collect new data as to confirm the findings and validate the new instrument.