Single-Factor Experiments

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Experiments in which the level of one and only one predictor variable is manipulated. For example, in an experiment assessing price sensitivity, there may be four treatments:

  • $1.
  • $2.
  • $3.
  • $4.

The single-factor may be a composite of other variables. For example, in a concept test each of the concepts may vary in terms of the general description, price, size and any number of other factors. However, the nature of a single-factor experiment is that when the single-factor is a composite of other variables it is not possible via statistical analysis to disentangle and isolate the relative contribution of these factors (although in many concept tests open-ended questions and standard batteries of questions are commonly used to attempt to disentangle the effect of the various variables).

See also