Q - Test. Q - test. Use to identify statistical outliers in data. This test should be applied sparingly and never more than once to a single data set. Q. And what means did you employ? A. The Snellen test, the chart. Q. Is that a standard method? A. That is a standard test chart. Q. That is recognized in the. Q. What do you mean by saying you check up on these tests? If there are new ones added, and no tuberculin test chart in the office, we order them tested. Q.