To assist all those working in the market research and opinion industry ESOMAR maintains a comprehensive glossary of market research and marketing terms.

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Edit Instructions
Editing (aka Data Cleaning)
Effect Variable
Eligibility Criteria
Eligible Respondent
Empty Nesters
Enabling Techniques
End Piling
Evoked Set
Executive Interviews (aka Business-to-Business Interviews)
Interviews with business people or experts within a particular field. Executive interviews are often used where the majority of knowledge of a subject is held by a minority of people.

Executive Summary
Exhibits/Exhibit Cards
Expected Value
Experience Survey
Experimental Design
Experimental Error
Experimental Treatments
Experimental Units
Expert Opinion Survey (aka Key Informant Technique or Specialist Research)
Exploratory Research
Exponential Smoothing
Extended Group Discussion
Extended Use Test
External Secondary Data
External Validity
External Variables (aka Extraneous Variables or Confounding Variables)
Extraneous Variables
Eye Tracking Research
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