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Interviewer Effects

Discuss Interviewer Effects within the Marketing Research ( MR ) forums, part of the PUBLISH / UPLOAD PROJECT OR DOWNLOAD REFERENCE PROJECT category; Interviewer Effects The ability of interviewers to alter questions, their appearance, their manner of speaking, the intentional and unintentional cues ...

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Abhijeet S
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abhishreshthaa
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Interviewer Effects - September 7th, 2010

Interviewer Effects
  • The ability of interviewers to alter questions, their appearance, their manner of speaking, the intentional and unintentional cues provided, and the way they probe can be a disadvantage.

  • It means that, in effect, each respondent may receive a slightly different interview.


  • Depending on the topic of the survey, the interviewers social class, age, sex, race, authority, training, expectations, opinions, and voice can affect the results.
  • The danger of interviewer effects is greatest in personal interviews. Telephone interviews are also subject minimal interviewer effects.

  • Mail and computer survey have minimal interviewer effects.
  • Questionnaire designs that minimize interviewer freedom also reduce the potential for interviewer bias. The most effective approach involves the skillful selection, training, control of interviewers.

  • However, after the most cost effective design principles have been applied, some interviewer bias is apt to remain. This should be estimated subjectively or, preferably, statistically.
  • One final problem that arises with the use of telephone and personal interviewer cheating. That is for various reasons, interviewers may falsify all or parts of an interview.

  • This is a severe enough problem that most commercial survey researchers engage in a . process called validation or verification.

  • Validation involves reinterviewing a sample of the Population that completed the initial interview. In this reinterview, verification is sought that the interview took place and was conducted properly and completely.
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Re: Interviewer Effects
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James Cord
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Re: Interviewer Effects - March 2nd, 2016

Quote:
Originally Posted by abhishreshthaa View Post
Interviewer Effects
  • The ability of interviewers to alter questions, their appearance, their manner of speaking, the intentional and unintentional cues provided, and the way they probe can be a disadvantage.

  • It means that, in effect, each respondent may receive a slightly different interview.


  • Depending on the topic of the survey, the interviewers social class, age, sex, race, authority, training, expectations, opinions, and voice can affect the results.
  • The danger of interviewer effects is greatest in personal interviews. Telephone interviews are also subject minimal interviewer effects.

  • Mail and computer survey have minimal interviewer effects.
  • Questionnaire designs that minimize interviewer freedom also reduce the potential for interviewer bias. The most effective approach involves the skillful selection, training, control of interviewers.

  • However, after the most cost effective design principles have been applied, some interviewer bias is apt to remain. This should be estimated subjectively or, preferably, statistically.
  • One final problem that arises with the use of telephone and personal interviewer cheating. That is for various reasons, interviewers may falsify all or parts of an interview.

  • This is a severe enough problem that most commercial survey researchers engage in a . process called validation or verification.

  • Validation involves reinterviewing a sample of the Population that completed the initial interview. In this reinterview, verification is sought that the interview took place and was conducted properly and completely.
Hey Friend,

here i am sharing Study on Relative Impact of Interviewer Effects and Sample, please check attachment below.
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