This paper chronicles the steps, methods, and presents hypothetical results of quantitative and qualitative studies being conducted to develop a Generalized Expertise Measure (GEM). Per Hinkin (1995), the stages of scale development are domain and item generation, content expert validation, and pilot test. Content/face validity and internal…

This paper concisely chronicles the evolution of the concept of expertise since the 1960s. After presenting the key themes of expertise throughout the years, we propose a breakdown of the evolution into three waves: information-processing wave, speed/problem solving wave, and emotional intelligence/ways of expertise wave. We then show the…