Resources Library by ANA

Sampling

This chapter sets out to explain the concepts behind the use of sampling in market research. It outlines some of the main options available to the survey designer and discusses the way sampling is carried out in practice. More complex topics are only...

Catalogue: ESOMAR Handbook Of Market And Opinion Research

Author: Martin Alan Collins

September 1, 1998

The variability of audience measurement data and how to live with it

The paper reviews the concept of sampling error applied to various methods of sampling and television panels in particular.Approaches are described for calculating sampling errors in relation to: Programme/Commercial Break Ratings Commercial...

Catalogue: ARF/ESOMAR Worldwide Electronic And Broadcast Audience Research Symposium 1996

Authors: Tony Twyman, Steve Wilcox

June 15, 1996

Sample size

Every researcher is asked the question: how big should the sample be? And every researcher has the same standard buck-passing answer: it depends on how accurately you want to measure what you measure. But given the amount of money that is traded on...

Catalogue: Radio Research Symposium 1995

Author: Ken Purdye

July 1, 1995

Random VS quota sampling methods

In survey research it is very rare for all respondents in a given population to be interviewed. We usually take a sample of that population. The reason why we can do this is because a sample can give us, not necessarily the accuracy of a census (or...

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires

Author: Paul Harris

February 14, 1995

Sampling errors

In this and the following paper, the phenomena associated with and the nature of "survey error" is explored.

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires

Author: Neil Higgs

February 14, 1995

The problem of bias

This paper looks at the various sources of bias, discusses how to reduce them or, at least, how to measure them.

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires

Author: Neil Higgs

February 14, 1995

Conducting research amongst small sectors of consumer markets

This paper discusses a problem that is frequently encountered in consumer market research. It is the requirement to obtain 'usable' samples of small minority market sectors where cost and time constraints exist. The author has not found the answer to...

Catalogue: Seminar 1981: Sampling Problems And Data Collection

Author: Peter Sampson

Company: Burke, Inc.

May 1, 1981

Efficiency in sample design

The purpose of this paper is to discuss within the current context of non-probability sampling, the derivation of criteria for determining efficient survey design, and within that, the effects of sampling error and bias in relation to other sources...

Catalogue: ESOMAR Congress 1978: Value For Money In Market And Social Research

Author: Bill Blyth

September 1, 1978

The sources of bias and their control in group depth research

Because of the qualitative nature of group discussions, they are often the subject of debate centering around two major issues. First to what extent are the results generalizable to the real world (external validity) and second what effect do certain...

Catalogue: ESOMAR Congress 1977: Research For Decision Making

Author: Al C. Farrell

Company: Molson Coors

June 15, 1977