I want to identify the relationship between DV (which in likert scale 1-5) and 3 or 4 or 5 IV which in likert scale too. I have computed the items of each scale (mean). It is for my thesis and from bibliografy i have found that there is relationship between the constructs. I have made the attached model and i want to confirm it. I must say that i have non-normal distribution in my data
The Likert scale numbers are ordinal data. They should not be analyzed using parametric statistics.
Thanks for your answer Mr Richardson. So, i must use non-parametric tests. I want to perform a regression analysis, i have to perform multinomial or ordinal regression to identify the relationship?
Plase take a look at the following site. It has some useful information about statistical analysis of Likert-scale data:
http://asq.org/quality-progress/2007/07/statistics/likert-scales-and-data-analyses.html
Thanks again! You suggest me not to compute the mean, but if i don't compute the items what i have to do? How i can take answers for attitude towards the behavior or for environmental concern or other construct? I have designed a series of questions that when combined measure a particular trait
When the response categories are ordered, you could run a multinomial regression model. The disadvantage is that you are throwing away information about the ordering. An ordinal logistic regression model preserves that information, but it is slightly more involved.
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