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 Spinach

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 7 0 0 0 5 0 0

100

0 0 0

High

35 65

13

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 17