Fig 2. Seating diagram for baseline and endline evaluations.

Each cell represents an individual sitting a desk taking a specified version and sub-version of the examination. Each 4x4 block of sixteen seats can be repeated ad infinitum, and will never result in two individuals who are taking the same exam versions sitting adjacent to each other in any direction. This was intended to minimize potential that participants could work together or share answers during the baseline and endline evaluations. It can flexibly be adapted to suit different sized/shaped rooms. E1V1 = Exam version 1, sub-version 1; E1V2 = Exam version 1, sub-version 2. E2V1 = Exam version 2, sub-version 1; E2V2 = Exam version 2, sub-version 2.