Level of Measurement

Presentation

Measures of CT

Measure of Dispersion

Nominal

Barchart/Frequency Distribution

Mode

% of Modal Observation/Single or Bimodal

Ordinal

Barchart/Frequency Distribution

Mode

Median

Range and distribution of percentages across values

Interval/Ratio

Histogram or Line Graph

Mode

Median

Mean

Standard Deviation

Skewness