Levels of data: Ordinal

IB Psychology: Levels of data: Ordinal

A variable has one of four different levels of measurement: nominal, ordinal, interval, or ratio. It is important for a researcher to understand the different levels of data, as they, together with the design used in an experiment (repeated measures or independent samples), help the researcher to decide which statistical analysis is appropriate.This page focuses on ordinal data - that is, when data indicates a "position"...


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