“Ordinary Science Intelligence”: A Science Comprehension Measure for Use in the Study of Risk Perception and Science Communication
This paper describes the “Ordinary Science Intelligence” scale (OSI_2.0). Designed for use in the empirical study public risk perceptions and science communication, OSI_2.0 comprises items intended to measure a latent (unobserved) capacity to recognize and make use of valid scientific evidence in everyday decisionmaking. The derivation of the items, the relationship of them to the knowledge and skills OSI requires, and the psychometric properties of the scale are examined. Evidence of the external validity of OSI_2.0 is also presented. Finally, the utility of OSI_2.0 is briefly illustrated by using it to assess the relationship of standard survey items on evolution and global warming to science comprehension.