In one study, for example, the author used exactly the same dosage question, but the correct answer differed depending on the label read. In analysis, the level of comprehension for each individual can be scored, just as with an academic test, and statistical testing on the means can be used to determine whether test and control differ. There is also a communication advantage in having one score for how well a label is comprehended. There is one final advantage of objective testing which has only been alluded to thus far. Since the questions pinpoint the different content areas of the label, it will be clear where the label communicates well and where it does not, thus permitting corrective action to be taken.
Additional research can verify that problems have been resolved.