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OVER 98% PASS RATE FOR THE NCS, PCS, OCS, AND GCS EXAMS › forums › OCS Advantage › Practice exam 4 › Reply To: Practice exam 4 February 17, 2023 at 4:12 pm #489003 Kristin HallbergParticipant Thank you for discussing Nick! The specificity of the new test is 25% which means that 75% of ALL negatives are false negatives. So this is considered poor ability of the test to rule out – MANY false negatives. What am I missing?