[Rasch] Likert scale 'rules' - Email found in subject

Dates, Brian BDATES at swsol.org
Thu May 17 06:03:54 EST 2012


While I think that Rasch scaling is far superior, I find that what most people refer to as Likert scales are really Likert-type scales.  Likert actually had a scaling process, while what passes for Likert scaling today is frequently a just matter of attaching five or so points to a series of response categories, hoping that the outcome has some scale properties…and hope is not a strategy.

Brian

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From: rasch-bounces at acer.edu.au [mailto:rasch-bounces at acer.edu.au] On Behalf Of Tom Conner
Sent: Wednesday, May 16, 2012 3:16 PM
To: rasch at acer.edu.au
Subject: Re: [Rasch] Likert scale 'rules' - Email found in subject

Some bad recommendations:

<http://jalt.org/test/bro_7.htm><http://jalt.org/test/bro_7.htm>

On 5/16/12 10:51 AM, Bond, Trevor wrote:
Dear colleagues,
          I wonder if you  have a list of, or a link to:
Those adamant but often misleading ‘rules’ for drafting Likert scales  that are often mandated by researchers who fail to consider the Rasch/empirical evidence.
Eg
Always use odd (or even) n of categories.
Use balanced response options
Use 5-11 categories – no more, no less
Make sure to use negatively worded items to trick unthinking respondents etc etc
Thanks
Trevor
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--

Tom Conner

Professor of Sociology

Michigan State University

office: 517 355-1747

cell: 517 230-0343

"What if there were no hypothetical questions?"

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