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?
Answer: measure of linear correlation
-1 is perfect inverse relationship
1 is perfect direct relationship
Flashcard 9: What is the Chi-square (X2) test used for? (biostatistics)
Answer: compare proportions of categorical outcomes between two groups (not comparison of means!)
Flashcard 10: Which parameters, sens/spec or PPV/NPV are affected by prevalence of the disease in the population?
Answer: PPV/NPV
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Relationship with false positive/negative rates Flashcards for USMLE
Study 10 flashcards on Relationship with false positive/negative rates for USMLE Biostatistics. These active recall cards cover the key concepts, clinical associations, and high-yield facts from this chapter of Sensitivity/Specificity. Each card is designed to test your understanding rather than just recognition, building stronger and more durable memories for exam day.
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There are 10 flashcards for Relationship with false positive/negative rates, covering the key concepts, clinical correlations, and high-yield facts from this chapter of Sensitivity/Specificity.
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