Data Types and Levels of Measurement

The data that is collected will be of two different Data Types and 4 different Levels of Measurement.

Qualitative Data: names & similar

Quantitative Data: numbers, which can be discrete (only particular numbers) or continuous (any real number value).

The following video goes over the data types with examples and is about 6 minutes

.

Data can be further sorted into Levels of Measurement:

Nominal: data can only be categorized, i.e. named

Ordinal: data can be ordered or ranked

Interval: data can be used for calculations, zero does not mean 'none'.

Ratio: data can be used for calculations, cannot be negative, zero means 'none'.

The following video goes over the level of measurement with examples and is about 8 minutes