The Analysis of Categorical Data- Types of Categorical Data Flashcards
Can non-continuous be distributed normally
IT CAN’T BE NORMALLY DISTRIBUTED.
For example categorical data such as ABO and tumour stage 1,2,3,4
What are the two types categorical data
Ordinal Variable and Binary Variable
What is an ordinal variable
A categorical variable which the CATEGORIES ARE ORDERED
How is a large sample number with large number of categories with ordinal variables analysed
Can sometimes be analysed as through they were continuous variables
How are small samples with ordinal variables analysed
They need a SPECIAL STATISTICAL METHOD
What is a binary variable
A categorical variable with TWO CATEGORIES
such as:
-Yes and No
-Can be a crude summary of some more informative underlying variable such as above or below the threshold