A single trial typically requires at least four people:
Suppose a trial begins at 10:00 hours.
10:00 A monitor and a receiver are sequestered in the
At this point,both the monitor and receiver are completely "blind" to the target choice; thus the monitor is free to encourage the receiver to draw and write his/hers impressions of the selected target.
10:25 Data collection ends.
The data are secured, and the assistant is asked to provide the target as feedback.
10:30 The session ends after a complete de-brief of the experience and a comparison of the data with the selected target.
Subsequently the data are assessed by an analyst who is blind to all experimental details.
We emphasize that this in not a complete description of a protocol but merely an outline of the way in which data are collected and analyzed.