Biostatistics — Flashcards

Flashcard 61: de4dcbb8321648c59eb0eb9463b92568-ao-2

Answer: population growth rate

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Flashcard 62: Test of significance for ordinal data is _____ test

Answer: Wilcoxon rank

Flashcard 63: youden's index gives _____

Answer: utility of a test 

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Flashcard 64: 3675d56a2e7b4499a8f95928687a3c92-ao-3

Answer: sensitivity,specificity,PPV,NPV relations-MCQ AIIMS 18

Extra: ? P for P goes down 

Flashcard 65: A bar chart in which each bar is divided into segments representing the relative proportions of its sub-divisions is a _____.

Answer: component bar chart

Flashcard 66: Formula for **Median** when the total number of observations (**n**) is an **odd** number: Median = _____

Answer: (\frac{n+1}{2})^{th} term

Flashcard 67: * Child-woman Ratio → _____ \(\times\) _____ * Pregnancy Rate → _____ \(\times\) _____ * Abortion Rate → _____ \(\times\) _____ * Abortion Ratio → _____ \(\times\) _____ * Crude Marriage Rate → _____ \(\times\) _____ * General Marriage Rate → _____ \(\times\) _____

Answer: \(\frac {No.\ of\ children\ 0-4\ yrs\ of\ age\ }{ Women\ of\ reproductive\ age\ (15-44/49yrs)}\)

Extra: y

Flashcard 68: To test significance for non-parametric data i.e. qualitative data for which frequencies are calculated, _____ is used, → First, a 2x2 table is created, → Expected Value (E) is determined for each group, where _____ → Observed value (O) is the observed frequency for that cell → Chi-Square value is given by, \(\chi^2\) = _____ → If frequency for any cell is less than _____, _____ has to be applied by modifying the formula for \(\chi^2 =\) _____ → \(\chi^2\) value pertaining to highest possible value obtaining by chance alone, for desired degrees of freedom (i.e. _____) is obtained from Table → If \(\chi^2_{calculated} > \chi^2_{table}\), then the difference is statistically _____

Answer: Chi-Square Test

Flashcard 69: zone of normalsy in normal distribution curve is between _____

Answer: +2 and -2 SD(standard deviation)

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Flashcard 70: _____ plot helps to analyse the overall effect in meta analysis

Answer: forest

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