What is the Chi-square (X2) test used for? (biostatistics)
#10
Which parameters, sens/spec or PPV/NPV are affected by prevalence of the disease in the population?
Relationship with false positive/negative rates US Medical PG Flashcards - Medical Study Cards
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Relationship with false positive/negative rates Flashcard Deck - 10 Cards
Flashcard 1: _____ is the probability that when the disease is present, the test is positive
Answer: Sensitivity
Flashcard 2: _____ is the probability that when the disease is absent, the test is negative
Answer: Specificity
Flashcard 3: A high _____ test is useful for confirmation after a positive screening test
Answer: specificity
Flashcard 4: Negative LR < _____ is an indicator of a very useful diagnostic test
Answer: 0.1
Flashcard 5: Positive LR > _____ is an indicator of a very useful diagnostic test
Answer: 10
Flashcard 6: Under Hardy-Weinberg conditions, what is the expected frequency of an X-linked recessive disease in males? Females?
