Chapter 1: Measurement. In Chapter 1:. 1.1 What is Biostatistics? 1.2 Organization of Data 1.3 Types of Measurements 1.4 Data Quality. Biostatistics . Statistics is not merely a compilation of computational techniques It is a way of learning from data
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
1.1 What is Biostatistics?
1.2 Organization of Data1.3 Types of Measurements
1.4 Data Quality
Data detectives who uncover patterns and clues through data description and exploration
Data judges who confirm and ad adjudicate decision using inferential methods
Classify observations into named categories
Categories that can be put in rank order
Numerical values with equal spacing between numerical values (like number line)
Source: Willett et al., 1995
Each questionnaire contains an observation
Data Collection Form
Var1 (ID) 1
Var2 (AGE) 27
Var3 (SEX) F
Var4 (HIV) Y
Var5 (KAPOSISARC) Y
Var7 (OPPORTUNIS) N
Each question corresponds to a variable
cig1930 = per capita cigarette use in 1930
mortality = lung cancer mortality per 100,000 in 1950
Unit of observation is region, not individual
Blackburn, S. (2005). Oxford Univ. Press
Frankfurt, H. G. (2005). Princeton University Press
BS is manipulative and has a preferred outcome.
Science bends over backwards to consider alternatives.
The intensity of the conviction that a hypothesis is true has no bearing on whether it is true or not.”
Peter MedawarScientific Ethos