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?
Positive predictive value (PPV) US Medical PG Flashcards - Medical Study Cards
Master Positive predictive value (PPV) with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Positive predictive value (PPV) Flashcard Deck - 10 Cards
Flashcard 1: How are prevalence and pretest probability related? _____
Answer: They are similar
Flashcard 2: _____ is the probability that when the disease is absent, the test is negative
Answer: Specificity
Flashcard 3: _____ is the probability that when the test is negative, the disease is absent
Answer: Negative predictive value
Flashcard 4: Negative LR < _____ is an indicator of a very useful diagnostic test
Answer: 0.1
Flashcard 5: _____ ratios can be multiplied with pretest odds of disease to estimate posttest odds
Answer: Likelihood
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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Positive predictive value (PPV) Flashcards for USMLE
Study 10 flashcards on Positive predictive value (PPV) 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 Positive predictive value (PPV), covering the key concepts, clinical correlations, and high-yield facts from this chapter of Sensitivity/Specificity.
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Yes. This page covers one chapter of Sensitivity/Specificity. Visit the topic page to see all chapters and their flashcards under Biostatistics.
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