Generalized Expertise Measure

the Generalized Expertise Measure (GEM) (2006) was developed by Germain  as a measure of perception of employee expertise.). She has also found that there is a behavioral dimension found in "experts", in addition to the dimensions suggested by Swanson and Holton (2001).

References:

Germain, M. L. (2006). Development and preliminary validation of a psychometric measure of expertise: The Generalized Expertise Measure (GEM). Unpublished Doctoral Dissertation. Barry University, Florida.

Swanson, R. A., & Holton III, E. F. (2001). Foundations of Human Resource Development. San Francisco: Berrett-Koehler Publishers, Inc.