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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 18, 2023 at 4:11 pm #489004 michaela mainParticipant Hi kristin this might help: sen. = true positive/ true positive plus false negative spec.= true negative/ true negative and false positive
