Statistics How To

Design of Experiments

Design of experiments means the planning process that needs to go into any experiment, survey or study in order for the results to be valid. The terms “Experimental Design” and “Design of Experiments” are used interchangeably and mean the same thing. However, the medical and social sciences tend to use the term “Experimental Design” while engineering, industrial and computer sciences favor the term “Design of experiments.”
experimental design
Design of experiments involves:

  • The systematic collection of data
  • A focus on the design itself, rather than the results
  • Planning changes to independent (input) variables and the effect on dependent variables or response variables
  • Ensuring results are valid, easily interpreted, and definitive.

The most important principles1 are:

You’ll find hundreds of videos and articles on this site to help you with the statistics behind design of experiments (including confidence intervals, sampling and hypothesis testing). These articles will guide you through design of experiments basics:

Design of Experiments: Types

Validity in Design of Experiments

Variables in Design of Experiments

Related Topics

Reference: Penn State: Basic Principles of DOE

Design of Experiments was last modified: February 18th, 2017 by Andale

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