Stats 2: Data

Question 1

What is categoric data?

Answer 1

Individuals fall into categories (without numbers mostly!)

Question 2

What is Binary data?

Answer 2

Data with only 2 categories

Question 3

What is ordinal data?

Answer 3

Greater than 2 categories with natural order

Question 4

What is nominal data?

Answer 4

Dater with greater than 2, but no natural ordering

Question 5

What is numeric data?

Answer 5

Data measured on numeric scale

Question 6

What is discrete data?

Answer 6

Where there is distinct # of values (e.g. frequency of an event)

Question 7

What is continuous data?

Answer 7

Any value within a particular range

Question 8

What is the risk difference?

Answer 8

Whether group has a higher/lower risk

Question 9

What is risk ratio?

Answer 9

How many more/less times likely for particular outcome

Question 10

What is odds ratio?

Answer 10

Where there is an increase/decrease in odds of outcome

Question 11

How to work out risk difference?

Answer 11

Subtract smallest probability from largest

Question 12

How to calculate RR?

Answer 12

Divide one probability by the other (focus on top)

Question 13

Calculate OR?

Answer 13

Divide odds in one group by odds in another (e.g. 66 affected / 310 unaffected)