In a situation, when 2x2 table is not given and only sensitivity, specificity, false positive rate, false negative
rate and prevalence of disease are known.
Conversely, suppose the costs of a false negative
are taken to be one-third the costs of a false positive.
For progressively lower P[H], the likelihood of detecting false positives increases while that of detecting false negatives
decreases, so that we move toward a cautionary bias in probability criteria for less frequent hazards regardless of what values we may choose for [alpha] in relation to [beta].
Investigation of bloodstains: False negative
results of the Benzedrine test.
Since there are deficiencies in a cervical screening program, reducing the Pap smear false negative
rate, unfortunately, will probably have a minimal effect on reducing mortality - the ultimate public health goal.
As a result, employers are plausibly willing to tolerate a certain number of false positives for every false negative
Productivity measures included slides screened per hour and turnaround time, while quality measures include abnormality detection rates and laboratory false negative
One study included more than 80,000 slides processed with the ThinPrep Imager and reported that "High-grade Squamous Intraepithelial Lesions (HSIL) cases detected with Imager assistance are more likely to have had a false negative
smear in the past.
Their decision was important, as the AIDS virus shows great diversity and only a peptide found in essentially all AIDS strains could ensure a minimal number of false negative
SDI's enrichment media stimulates the targeted pathogen to grow rapidly and become easily identified while suppressing the billions of other bacteria that typically cause cross-reactivity and false positives, or worse: a false negative
which indicates no detection at all.
Its signature recognition was excellent out of the box, handling our demanding false positives, false negative
and evasion tests easily, and was the only product to score 100 percent resistance to false positives out of the box, crucial for not blocking legitimate traffic.
Based on multiplex-PCR, the kits detect multiple regions of pathogen DNA and include internal and external controls, greatly reducing false positive and false negative
Every false positive brings multiple federal agencies stumbling to the scene with no real plan, and every false negative
risks complacency in the face of a lethal threat.
This condition may also be responsible for false negative
Hybrid Capture II (HC II) test results in women who also may have had possibly pre-cancerous cervical cells.
The workbench processes MS data up to 10 times faster than alternative approaches, while greatly reducing false positive and false negative
results for reliable protein identification.