AOAC-RI ERP Book Micro Jan 19 2017
Table 4. Quantities and Percentages of True Positive, True Negatives, False Positives, and False Negatives for the Candidate Method Testing of Ground Beef, 18hr Enrichment
Final Result 1 True Positive True Negative False Negative False Positive True Positive True Negative False Negative False Positive True Positive True Negative False Negative False Positive
Inoculation Level
Total
Percentage (%)
5 0 0 0 9 0 0 0 5 0 0
100
0 0 0
High
45 55
11
Low
0 0 0 0 0
100
Un-inoculated
1. TRUE POSITIVE, ““Screening Stage”” Positive Result - ”Confirmation Stage” Positive Result; TRUE NEGATIVE, “Screening Stage” Negative Result - ”Confirmation Stage” Negative Result; FALSE POSITIVE, “Screening Stage” Positive Result- ”Confirmation Stage” Negative Result; FALSE NEGATIVE, “Screening Stage” Negative Result - ”Confirmation Stage” Positive Result
CONFIDENTIAL INFORMATION Page 9 of 13
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