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?
2x2 contingency tables US Medical PG Flashcards - Medical Study Cards
Master 2x2 contingency tables 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.
2x2 contingency tables 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: _____ scores are used to calculate the probability that two loci are linked (linkage disequilibrium)
Answer: LOD
Flashcard 3: Specificity values approaching 100% is desirable for ruling _____ disease (in or out)
Answer: IN
Flashcard 4: _____ is the probability that when the test is negative, the disease is absent
Answer: Negative predictive value
Flashcard 5: Sensitivity values approaching 100% is desirable for ruling _____ disease (in or out)
Answer: OUT
Flashcard 6: Under Hardy-Weinberg conditions, what is the expected frequency of an X-linked recessive disease in males? Females?
