Levels of measurement

Question 1

What is nominal data?

1

Answer 1

• Data in separate categories (height)

Question 2

What is ordinal data and an example?

2

Answer 2

• Data ordered in some way (height order)

- Data from ranked scales

Question 3

What is interval data and what is a pro of this?

2

Answer 3

• Data measured using units of equal intervals e.g. cm

- Level of measurement precise, unit = equal intervals

Question 4

What does a correlational hypothesis state and an example?

2

Answer 4

• Relationship instead of difference

- One tailed alternate hypothesis = There is a + relationship between age and beauty