Universe integrity testing
CMS's check, on 10 sampled cases per universe, that universe data matches the plan's systems and documents.
CMS selects 10 cases from each of Tables 1-6 (60 in total) and, before field work, holds a webinar with the plan to verify the data and confirm effectuation of approved requests. A universe's integrity is questioned if data points for a sampled case are incomplete, do not match, or cannot be verified. Sample selections are provided about one hour before the webinar.
Sources: ODAG protocol, Universe Integrity Testing, PDF p. 4; CDAG protocol, Universe Integrity Testing, p. 4; FA protocol, Audit Elements Tested, Universe Integrity Testing, PDF p. 4; SNPCC protocol, Universe Integrity Testing (PDF p. 4); Verification of Information Collected (PDF p. 21); CPE protocol, Audit Elements table, Integrity Testing (compliance standard: Not Applicable), p. 4; Verification of Information Collected, p. 18.