Variables

Question 0

What are the two types of variables and define them?

Answer 0

Independent - what you manipulate

Dependent - what you measure

Question 1

What is a variable?

Answer 1

Any concept that can be measured and which varies

E.g. Height, weight etc

Question 2

What do you call variables that cannot be manipulated?

Answer 2

Predictor and outcome

Question 3

What is a case?

Answer 3

Usually a person but can be an industry, organisation or object

Question 4

Name the 4 levels of measurement

Answer 4

Nominal, ordinal, interval and ratio

Question 5

Which of these levels of measurement measures with a scale of order e.g. First, second, third?

Answer 5

Ordinal

Question 6

What are interval and ratio scales?

Answer 6

They are continuous measures with equal distances between measurement points

Question 7

What is a nominal scale?

Answer 7

Measured using scales that are categorisation only e.g. Gender. No ranking system.
Example: 1 = female, 2 = male

Question 8

What is the difference between interval and ratio scales?

Answer 8

Interval has no absolute zero whereas ratio does

Question 9

How do you display nominal data?

Answer 9

Frequency charts/pie charts

Question 10

Which level of measurement can’t really be summarised?

Answer 10

Ordinal

Question 11

How do you display continuous data?

Answer 11

histograms/bar charts