Could you please let me know what nonparametric tests for multivariate regression analysis there are and what software would be useful for the analyses? I am thinking of administering two different questionnaires whose items are ordinal data using a 7 point-Likert scale and of using multivariate regression analysis. Thank you for your help in advance.
Typically, data obtained from Likert scales are regarded as parametric in nature, so you could use "standard" multiple regression.
Robert.
If you are using Likert-scored items that you want to combine into scales, then I agree with Robert that you should treat those scales as interval.
Because there have been so many questions about this topic, I have compiled a set of resources on it:
https://www.researchgate.net/post/How_can_one_help_people_create_simple_scales_from_Likert-scored_items
If your Likert scales are ordinal rather than interval, then you need to consider nonparametric analyses. That said, some scales may be interval, some may be ordinal, and while I recommend to be conservative and use non-parametric analyses, other researchers do use parametric analyses for a mixed data-set. However, I think the best practical advice is to find a peer-reviewed journal article that uses your methodology, or similar, in your field and then use this standard as a starting point to organize your analysis work.
If using the SPSS software package I have attached a link to an SPSS manual which is very widely used, and which will contain the decision making steps for statistical test choice and the step-by-step instructions for computing, interpreting, and writing up your analysis section for your results.
https://books.google.co.uk/books?hl=en&lr=&id=HxjxDQAAQBAJ&oi=fnd&pg=PP1&dq=spss+for+psychologists&ots=QAQXViBJ2h&sig=INxI2I6D-J5f5s71OYnkCUUEigU#v=onepage&q=spss%20for%20psychologists&f=false
- Badges
- Science topic
- Similar topics
- Mathematical Sciences
- Statistics
- Statistical Software
- SPSS