8th August 2009 at 1:34 am #5764George MathewMember
Can we use likert scale for correlation and chi-square test? Is is ordinal scale or interval scale?9th August 2009 at 10:38 pm #5776Annie PettitParticipant
Well, in the real world (business), you certainly can and it’s a common occurrence. Likert scales are usually ordinal scales.10th August 2009 at 11:11 pm #5775Nick StoneMember
I think this interesting question has divided responses. It would depend on who you are trying to convince of a particular case. One argument is that while the scales are strictly ordinal, there is evidence that people (at least in business research) do respond in patterns that are close enough to approximate interval level (personal discussion with Joe Hair, also see his reader friendly texts).
The other school of thought thinks this is unacceptable and you should either treat them as ordinal, e.g. use non-parametric approaches or transform the data into a more suitable form using something like Rasch analysis or item response modelling.
Hope this helps
Nick11th August 2009 at 12:47 am #5774George MathewMember
Thank your very much. Now it is clear
George Mathew11th August 2009 at 11:55 am #5773Muhammad RafiqMember
I believe there are two camps. One believes that Likert scale data is Ordinal scale, other believe that this data belongs to interval scale. Both camps have published their research findings and analyzed data accordingly. Its up to you to which camps you will follow.
Rafiq13th August 2009 at 1:43 am #5772Mohamed MEJriMember
I’m agree with the collegues that a likert scale should be considered as an interval or ordinal scale, but I think, we can also consider the different levels of a likert scale (normally 5 or 7) as a modality of a nominal variable, and then, we can use chi-square test, Multiple Coresspondance analysis …
Mohamed24th September 2009 at 8:20 am #5771Peter RegelousMember
You can simply use excel to find the averages and then compare these for each class of questionaire3rd October 2009 at 8:15 am #5770Zewdu GetachewMember
im happy to join this website. i will forward to you some some questions regarding the construction and analysis of a five point likert scale. thanks!7th November 2009 at 12:25 am #5769Jeremy MilesParticipant
Most people treat them as interval, although strictly they are ordinal.8th November 2009 at 4:15 pm #5768K.KalyanaramanMember
It will be highly appreciated if the claim, ordinal or interval, is associated with sufficient reasoning at this level of discussion.9th February 2010 at 11:27 am #5767Muhammad ZubirMember
As far s i’m concern..it depend on your research Question and Research Objectives.From there then you can determines what the right measurement and method for tthe research.10th February 2010 at 10:09 am #5766Peter BetiangMember
In Research that seeks to determine the impact of government’s policies on poverty reduction over a 20 year period, what are the two major variables-dependent and independent?
Peter Betiang11th February 2010 at 1:27 am #5765Josie LaPlanteMember
Spearman’s rho, a rank order correlation coefficient, may offer you a good option for correlation analysis, since it is a nonparametric measure.
When I worked in a large advertising firm (prior to entering the academic life), we were careful to treat Likert scaled responses as ordinal because the propensity to move from neutral to agree or disagree tending to be greater than movement to the polar choices. (And of course this varies across individuals.) Because it was helpful to be able to take averages, we would score responses to reflect the likely spans. For example, you could score strongly disagree to strongly agree as -5, -2, 0, +2, +5, with an average near 0 indicating little interest in the product.
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