A Comparison of Item Non-Response in Web and Pen-and-Paper Surveys of Sexual Behaviour | Zendy

Alison Evans | Zendy; Jonathan Elford | Zendy; Graham Bolding | Zendy; Richard D. Wiggins | Zendy

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A Comparison of Item Non-Response in Web and Pen-and-Paper Surveys of Sexual Behaviour

Author(s) -

Alison Evans,

Jonathan Elford,

Graham Bolding,

Richard D. Wiggins

Publication year - 2008

Publication title -

methodological innovations online

Language(s) - English

Resource type - Journals

ISSN - 1748-0612

DOI - 10.4256/mio.2008.0002

Subject(s) - summative assessment , sample (material) , multivariate statistics , psychology , multivariate analysis , population , computer science , statistics , applied psychology , demography , sociology , mathematics , mathematics education , chemistry , chromatography , formative assessment

Excluding respondents who fail to answer a question will reduce effective sample size. This weakens statistical power and creates problems for the creation of summative indicators, the analysis of multi-item scales and the application of multivariate techniques (Dickinson & Kirzner 1985). When item nonresponders differ systematically from responders on the variables of interest, item non-response will also lead to biased population estimates (Kupek 1999). One of the major goals of any survey design is therefore to minimise item non-response.

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