STATS (ONLY LEVELS OF MEASUREMENT)

exhaustive and exclusive categories

nominal

exhaustive, exclusive, and ranked categories

ordinal

exhaustive, exclusive, ranked categories with EQUAL spacing between them

interval

exclusive, exhaustive, ranked categories with equal spacing plus HAS and absolute zero

ratio

gender, hair color, eye color

nominal examples

class rankings, movie ratings, education level

ordinal examples

interval examples

temp, calendar years, IQ scores

ratio examples

height, weight, income, time

categories, can count frequencies, but cant rank

nominal

ranked but distance isnt same- 1st, 2nd, 3rd

ordinal

meaningful differences but zero doesn’t mean none, add/subtract

interval

interval but has a true zero point, add/subtract/divide/multiply

ratio