Can the units reviewed as part of the Probe or Discovery Sample be used as part of the Full Sample?
Historically, the OIG has not allowed the Probe Sample (as a whole) to be used as part of the Full Sample. However, the OIG will now allow, if statistically appropriate, the Probe or Discovery Sample (as a whole) to be used as part of the Full sample. For example, if the reviewer must examine 200 sampling units in the Full Sample, the reviewer may use the results from each of the 50 units in the Discovery Sample. Therefore, the reviewer only has to randomly select and review an additional 150 sampling units. The results of all units reviewed as part of the complete Full Sample should be reported, i.e., 200 sampling units.
