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?
Negative predictive value (NPV) US Medical PG Flashcards - Medical Study Cards
Master Negative predictive value (NPV) 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.
Negative predictive value (NPV) Flashcard Deck - 10 Cards
Flashcard 1: A high _____ test is useful for screening in diseases with low prevalence (sensitivity or specificity)
Answer: sensitivity
Flashcard 2: _____ is the probability that when the disease is present, the test is positive
Answer: Sensitivity
Flashcard 3: How are prevalence and pretest probability related? _____
Answer: They are similar
Flashcard 4: Sensitivity values approaching 100% is desirable for ruling _____ disease (in or out)
Answer: OUT
Flashcard 5: Negative LR < _____ is an indicator of a very useful diagnostic test
Answer: 0.1
Flashcard 6: Under Hardy-Weinberg conditions, what is the expected frequency of an X-linked recessive disease in males? Females?
