What are the 4 different levels of data?
What is nominal data?
mostly names and categories
e.g sex, age, occupation
What is ordinal data?
data is ordered
e.g likert scales, shoe size
What is interval data?
distances between data points is equal but no true zero
e.g temperature, IQ, pH measure
What is ratio data?
Same as interval but it has a true zero
e.g no. of children a person has, height, weight, score on a test