Click on the following links. Please note these will open in a new window.

• Web Center for Social Research Methods 
  A link to explanations and examples of the different levels of measurement.
   
• Summary of The Four Levels of Measurement 
  A link to a webpage with tables summarizing the appropriate descriptive statistics and graphs for the different levels of measurement.
   
• Presenting numerical data 
  A link to a website with detailed explanation and examples on how to present data at different levels of measurement.
   
• Ratios, Proportions, Percentages, and Rates 
  Explanations and examples of ratios, proportions, percentages, and rates.