Biostatistics Indian Medical PG Flashcards - Medical Study Cards
Master Biostatistics 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.
Biostatistics Flashcard Deck - 10 Cards
Flashcard 41: Statistical power of a test = _____
Answer: 1 - β
Extra: Power (1 - β) is the probability that a test will correctly reject a null hypothesis when it is false.
β = Type II error (false negative rate).
Flashcard 42: odds=0.5
probability=
Answer: 0.33
Extra:
Flashcard 43: Life expectancy at birth in India (SRS 2016-20) is _____ years
Answer: 70.0
Extra: According to the Sample Registration System (SRS) 2016-20 report:
- Total: 70.0 years
- Male: 68.6 years
- Female: 71.4 years
Previous (SRS 2015-19): 69.7 years.
Flashcard 44: HALE(health adjusted life expectancy) means
Answer: number of years lived in full health
which is free from ill health
Extra:
Flashcard 45: c65872b736324b578b20a22eef5c027a-ao-3
Answer: tests of significance
Extra:
Flashcard 46: _____ type regression is used for quantitative variations
Answer: linear
Extra:
Flashcard 47: _____ measure is the most affected by extreme values
Answer: mean
Extra:
Flashcard 48: _____ is the test of significance for level of agreement bw 2 criteria
Answer: KAPPA test
Extra:
Flashcard 49: List the formulas for Standard Error (SE) for the following:
1. Mean
2. Proportion
3. Difference of means
4. Difference of proportions
Answer: 1. **Mean**: \(SE_{mean} = \frac{SD}{\sqrt{n}}\) (Note: use \(n-1\) for small samples < 30, as in t-test)
2. **Proportion**: \(SE_{proportion} = \sqrt{\frac{pq}{n}}\)
3. **Difference of means**: \(SE_{diff\ mean} = \sqrt{\frac{SD_1^2}{n_1} + \frac{SD_2^2}{n_2}}\)
- Or: \(s \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}\) where pooled \(s = \sqrt{\frac{\sum(X_1 - \bar{X}_1)^2 + \sum(X_2 - \bar{X}_2)^2}{n_1 + n_2 - 2}}\)
4. **Difference of proportions**: \(SE_{diff\ prop} = \sqrt{\frac{p_1q_1}{n_1} + \frac{p_2q_2}{n_2}}\)
Flashcard 50: constrictive type of age pyramid is for _____ countries
Answer: developed
Extra: A constrictive population pyramid is narrower at the base, indicating a low birth rate and a decreasing population of younger individuals, which is typical of developed countries.
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