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Research papers

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

Research papers

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

Research papers

Theory and application of multivariate methods (dependence)

In our data matrix we have one variable of particular interest and we wish to see how it is affected by movements in a single explanatory variable. For example, the variable we might be interested in is Sales in £mn and we may wish to know how it...

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires
Author: Paul Harris
February 14, 1995

Research papers

Measures of association and correlation

One of the most important uses of statistical analysis is to investigate the associations or relationships between different variables. Understanding these relationships is of importance to an investigator for several reasons: It helps in the...

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires
Author: Paul Fatti
February 14, 1995

Research papers

Cluster analysis

Clustering normally operates on the rows of the data matrix. It seeks to find groupings or clusters of respondents who exhibit similar patterns in terms of the variables measured.

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires
Author: Paul Harris
February 14, 1995

Research papers

How to ask a question and what to avoid

Questionnaire design must be regarded as one of the most critical phases of a market research survey because if the required information is not covered adequately or if the questions are not asked properly then no amount of clever interviewing or...

Catalogue: ESOMAR Teach-In Seminar 1995: All You Ever Wanted To Know About Sampling, Statistics And Questionnaires
Author: Jack Hamilton
February 14, 1995