I want to compare my five point scale data with a secondary source (6 point scale) for the same attribute. Is there a technique where I can do so?
Hi Monica,
You can do a z-Transformation. Unfortunately, I do not have a good reference that explains it well. But if you google it, you will find out how it works.
Hope that helps.
Rafael
oh yes, i did find that but i thought there may be some other easy way... Thank u so much!!
Hi Monica
It depends on what you compare :) Why not just try and extrapolate the scale? It is rather easy following rules of proportion. If it would be my task, I would search past studies that did something similar, and first and foremost question myself, if what I did is comparable - and if those two different scales show comparable information.
Hey Thanks for your answer Sandra.
Can we do it with the rules of proportion? I think yes, it seem comparable, I just want it to be statistically correct.
If you find evidence that this is done in previous research, definitively. I am a "fan" of simple approaches - because they are easy to understand - but only if that is comparable. It really depends on your context. Sometimes one can do a lot, in other contexts less is possible - ....
Thank you all.
Finally I used just an extrapolation of a six point scale to deduce to 5 point scale. It did solve my purpose :-)
Well, I don't know your research - but this sounds for me too quickly. If I were you I would use some of our considerations first - it is really difficult to give a scientifically valid advice, if we don't know the data - data type and the context.
Yes, i agree. But in this case i just needed a conceptual comparison and not statistical, so it does help. Thanks again
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