Alanna PuglieseKatherine Perdomo

LEVELS OF MEASUREMENT

There are 4 levels of measurementNominal OrdinalIntervalRatio

LEVELS OF MEASUREMENT

CategoricalUnits are categories

with no numerical meaning Nominal Ordinal

NumericalHave standard units of

measurement Interval Ratio

TYPES OF DATA

Nominal data: Categorizes people or things

Categories cannot be ordered Frequency measures are used to describe/summarize the data

NOMINAL DATA

Ordinal data: Categorizes persons and things

Implies rank order of intensity but not a numeric quantity No standard unit of measure

ORDINAL DATA

Interval data : Numerical Distance between the numbers are equal but there is no

zero Standard unit of measure

INTERVAL SCALES

Ratio data:NumericalThere is equal distance between the numbers and there is a zero point

Standard unit of measure

RATIO SCALES