Levels of Measurement

Flashcards covering the four levels of measurement: nominal, ordinal, interval, and ratio, including their definitions and applicable statistical measures.

Nominal Data

Categories with no intrinsic order; they are merely labels.

Ordinal Data

Data that enables ranking but does not provide fixed distances between categories.

Interval Data

Allows for ordered values with established distances, but zero does not signify an absence.

Ratio Data

Mirrors interval data but includes a true zero that indicates the absence of the measured attribute.

Mode

A statistical measure applicable to nominal data.

Median

Suitable statistical measures for ordinal data, along with percentiles and interquartile range (IQR).

Mean and Standard Deviation

Appropriate statistics for interval data.