01.2. Phase II
ii. Statistics – (Lectures - 8 hours + Tutorials - 4 hours)
Objective |
Content |
T-L Activity |
Time Hrs. |
Summarize and present a data set using appropriate summary statistics & graphical methods |
Data types Scales of measurement Measures of central tendency: Average- Mean, Median, Mode Measures of dispersion: Range, Quartiles, Standard Deviation Significant figures, Rounding, Tables Graphs: Histograms, Stem & Leaf Plots, Box plots, Bar & Pie Charts: (simple, compound and component), Pictogram,Scatter diagram, Line Graph |
Lecture |
2 |
Describe the sampling methods and comment on the appropriateness of the sampling method used for a particular study |
Sampling techniques: simple, random, systematic, stratified, multistage, cluster Table of random numbers, Computer generated random numbers |
Lecture |
1 |
Explain confidence intervals |
Standard error of mean, Standard error of percentage/ proportion, SE of difference between two means, SE of difference between two proportions |
Lecture |
2 |
Perform the following significance test – Normal test (for means and percentages), X2 test |
Null hypothesis Normal test/Z test, t test, Chi square test Type I error and Type II error |
Lecture |
1 |
Interpret correlation coefficient and linear regression |
Correlation coefficient, Simple Linear Regression, Regression Coefficient interpretation. |
Lecture |
1 |
Explain the need for standardization of mortality and morbidity statistics. |
Standardized Mortality rate/ratio - Direct standardization Indirect standardization |
Lecture |
1 |
RECOMMENDED READING MATERIAL
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Bland M 2000, An Introduction to Medical Statistics, Oxford University Press, pp 68 – 81, 122 – 132, 137 – 140, 156 – 164, 233 – 239 and 275 – 281.
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Winifred M Castle, 1977, Statistics in Small Doses, Churchill Livingston.
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Park, K 2007, ‘Elementary Statistical Methods : Health Information and Basic Medical Statistics’, in Park’s Text Book of Preventive and Social Medicine pp. 696- 706, Banarsidas Bhanot Publishers, Jabalpur, India
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Park, K 2007, ‘Adjusted or Standardised rates: Principles of Epidemiology and Epidemiologic Methods’, in Park’s Text Book of Preventive and Social Medicine pp. 54- 56, Banarsidas Bhanot Publishers, Jabalpur, India