CO OZNACZA SŁOWO FALSE NEGATIVE
Błędy typu I i II
W statystyce, hipoteza zerowa jest stwierdzeniem, że badana rzecz nie wywołuje żadnego efektu ani nie ma żadnego znaczenia. Przykładem zerowej hipotezy jest stwierdzenie: "Ta dieta nie ma wpływu na masę ludzi". Zwykle eksperymentator tworzy hipotezę zerową, z zamiarem jej odrzucenia: to znaczy zamierza przeprowadzić eksperyment, który dostarcza danych, które wskazują na to, że badane zagadnienie robi różnicę. Błędem typu I jest nieprawidłowe odrzucenie prawdziwej hipotezy zerowej. Jeśli chodzi o hipotezę o zerowej wartości, to stanowi fałszywie pozytywne. Zwykle błąd typu I prowadzi do wniosku, że przypuszczalny efekt lub związek istnieje, gdy w rzeczywistości nie. Przykłady błędów typu I obejmują test, który wskazuje pacjenta na chorobę, gdy pacjent nie cierpi na chorobę, alarm pożarowy gasnie, wskazując na pożar, gdy w rzeczywistości nie ma ognia lub eksperymentu wskazującego, że leczenie powinien leczyć chorobę, gdy w rzeczywistości nie. Błędem typu II jest brak odrzucenia fałszywej hipotezy zerowej. Jeśli chodzi o hipotezę niebędącą zerową, stanowi ona fałszywie negatywny wynik.
Definicja słowa false negative w słowniku
Definicja fałszywego negatywu w słowniku jest wynikiem testu medycznego, który błędnie wskazuje na brak badanego stanu. Inną definicją fałszywego negatywu jest osoba, od której uzyskano taki wynik.
CYTATY ZE SŁOWEM «FALSE NEGATIVE»
Słynne cytaty i zdania ze słowem
false negative.
In 1970 I realized that there was negligible risk from x-rays but many radiographs had poor image quality so that the risk from a false negative was significant.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «FALSE NEGATIVE»
Poznaj użycie słowa
false negative w następujących pozycjach bibliograficznych Książki powiązane ze słowem
false negative oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
1
Epidemiology, Biostatistics, and Preventive Medicine
The rate at which this occurs is called the false- negative error rate and is
calculated as c/(a + c). The correct denominator for the false-negative error rate is
all of those who are diseased because only those who are diseased are at risk
for ...
2
Advanced Therapy of Breast Disease
Thus, false- negative mammography is having a critical impact on the specialty of
physicians sued and appears to be amplifying to the length of diagnostic delay by
repeated false-negative readings on follow-up mammograms. The age ...
S. Eva Singletary, Geoffrey L. Robb, Gabriel N. Hortobagyi,
2004
Incorrectly matching a subject B' to biometric B. Using terminology from detection
theory, we call these a False Negative and a False Positive, respectively: I. False
Negative (FN): Deciding that a subject is legitimate while in reality the subject is ...
There are two types of errors in breast ultrasound: false-negative and false-
positive findings. False-negative findings result in a Breast Imaging Reporting
and Data System (BIRADS) category assignment that is falsely low, and false-
positive ...
A. Thomas Stavros, Cynthia L. Rapp, Steve H. Parker,
2004
5
Clinical Laboratory Medicine
False-negative results for urobilinogen can be obtained whenever the urine is
allowed to remain in daylight for extended periods after voiding, as the
urobilinogen breaks down. If formaldehyde is used as a urine preservative, it will
inhibit the ...
Kenneth D. McClatchey,
2002
6
Breast MRI: Diagnosis and Intervention
11-13-15.17.20-30 Therefore, the false-negative rate ranges from 5% to 80%.
Boetes and colleagues25 examined false-negative cases of breast carcinoma in
MRI, and concluded that MRI missed up to 4% of cases. However, DCIS lesions ...
Elizabeth Morris (MD.), Laura Liberman,
2005
The story he's working on now-- a beauty queen found strangled on an Atlantic City beach-- is one that boardwalk power brokers would rather see covered up than covered.
8
Danforth's Obstetrics and Gynecology
high false-positive rate and a higher false-negative rate than achieved with other
methods. Commonly, the NST is used as a screening test, and if abnormal, a
backup test such as the contraction stress test or biophysical profile (BPP) is used
.
9
Studying a Study and Testing a Test: How to Read the Medical ...
To better understand what we mean by the relative importance of false negative
and false positive results, we can examine testing for glaucoma and ask: What
factors influence the importance of false negative and false positive results?
10
Encyclopedia of Biometrics: I - Z.
... systems accept multiple biometric samples per person. ▷Finger Vein Reader
comparison between different algorithms is usually done by comparing False
Negative Rate at a fixed False Positive Rate. ▷ Biometric System Design,
Overview ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «FALSE NEGATIVE»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
false negative w wiadomościach.
7 Common Biases That Skew Big Data Results
... false positive, and false negative]," said Keith Schleicher, managing director of decision science at Internet service provider CenturyLink in an ... «InformationWeek, Lip 15»
New Diagnostic Detects Sepsis in Three Hours
... of blood cultures is that it's only 50 to 60 percent sensitive, so that means 40 to 50 percent of patients have a false negative,” Lowery said. «Bioscience Technology, Lip 15»
Study results point to early cancer detection
The test had zero false positive and zero false negative results.Moreover, the study found the more advanced the patient's cancer, the more ... «Longview News-Journal, Lip 15»
Misunderstanding the genome: A (polite) rant
False negative results—telling someone they're low-risk when they're not—is immediately obvious as a problem. But false positives are harmful ... «Ars Technica, Lip 15»
Govt says no dengue deaths, private hospitals in Bengaluru reject …
Elisa test results can be false negative or false positive," said Biradar. According to him, the number of cases will reduce only if each household ... «Times of India, Lip 15»
Celebrity campaigns are a distraction from the real risks of cancer …
Sometimes screening produces false negative results, where people are mistakenly told they don't have the disease. More common are the ... «The Conversation UK, Lip 15»
"Tweaking" the Test
"In other words, the rate of false positive and false negative results hasn't been reported. We simply do not know if this is an accurate approach ... «UUHC Health Feed, Lip 15»
Watchdog: VA Didn't Dawdle In Treating Vets With Legionnaires …
... tests, dawdled in providing treatment to vets in 2012 and improperly collected water samples to obtain false negative bacteria results. «GovExec.com, Lip 15»
POINT OF VIEW: Don't lose sight of Florida's many virtues
I have a message for the Florida-haters out there who present a false negative image of our fair state: Enough already. Move on. Or, at the very ... «Palm Beach Post, Lip 15»
PredSTP: a highly accurate SVM based model to predict sequential …
An analysis of the 142 negative STP chains predicted by PredSTP demonstrated only one false negative. The sensitivity, specificity, precision ... «BMC Blogs Network, Lip 15»