One who wants to know how the Multistate Bar Examination is created should begin by learning how the drafting committees work. My assignment is to describe the work of one of those committees: the Evidence Committee. Though there are differences among the six committees, they mostly are ones of style, and to learn how to operate in the evidence group is to understand the process generally.
Reed, John W. "Preparation of the Multistate Bar Examination: One Drafting Committee's Perspective." Bar Examiner 54, no. 2 (1985): 4-12.