[Rasch] Number of options in survey questions

Looveer, Juho Juho.Looveer at det.nsw.edu.au
Tue Feb 28 00:05:27 EST 2006

Something much simpler than recent issues . . . 
Years ago I was advised that we should use an even number of options for any survey questions (ie those with Likert-type responses); ( e.g. never - rarely - often - always)
This would avoid the central tendency for respondents.
However, most commercial surevys use an odd number of options ( e.g. never - rarely - sometimes - often - always)
I am interested in any articles that discuss this issue, or any general comments from erudite practitioners.
Dr Juho Looveer
Manager, Data Collection
Planning and Innovation
NSW Department of Education and Training
Level 5, 35 Bridge St Sydney
GPO Box 33
Sydney NSW 2001
work phone: 956 18192
fax: 956 18055
Juho.Looveer at det.nsw.edu.au 


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