Talk:Analysis of variance
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- Simplified overview of Anova http://www.statisticssolutions.com/ANOVA.htm
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- Can link degrees of freedom: ...hbox{Error}} + SS_{\hbox{Treatments}}</math> The number of degrees of freedom (abbreviated ''df'') can be partitioned in a similar way an... (link to section)
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- In Chi-square test, can backlink analysis of variance: ...en approximately chi-square tests; e.g., ''F''-tests in the analysis of variance and ''t''-tests are likelihood-ratio tests, but the test st...
- In Conjoint analysis (in marketing), can backlink analysis of variance: ...ike SPSS or SAS. == Analysis== The computer uses monotonic analysis of variance or linear programming techniques to create utility function...
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Feedback: I like it, I hate it, Please don't link to — LinkBot 11:28, 1 Dec 2004 (UTC)
Frankly, I don't think this page is very clear. It would be nice to add a few words about the type problems ANOVA is applied to. The second bullet describing classes ("Random-effects models assume that the data describe a hierarchy of different populations whose differences are constrained by the hierarchy.") is hard to understand for the non-expert. The meaning of SS is not explained (I guess it means "sum of squares"?). Is there anybody with a backgroud in statistics who could improve upon this article? --Agd 20:28, 9 November 2005 (UTC)
Agree that the page is not clear. Needs major revision. 212.179.209.45 01:01, 16 January 2006 (UTC)
Agreed this page lacks many anova tests. I was going to use this as a reference before I got my stats book for class, and to my dismay there is not a single formula. Remi Arntzen 11:56, 17 March 2006 (UTC)
[edit] "Example of one-way ANOVA"?
The sections labeled "Example of [...]" are not actually examples of the ANOVA procedure, they are examples of study designs on which analysis by ANOVA might be useful. A fine distinction, but an important one I think. Should revise either the section headings or the sections' contents.
- I updated the language, and it should reflect what you noted. Chris53516 13:53, 15 August 2006 (UTC)
Sorry, but this page really completely useless. It's a bit like an "About" box for ANOVA. Gives you a hint about what it might be. But without any actual worked examples, showing you how to get the results you need, and then how to interpret those results, nothing useful is learned. Barfly42 15:24, 17 December 2006 (UTC)
[edit] ANOVA definition
I changed the definition of ANOVA (the first paragraph). The old definitions was not generale enough. ANOVA can be used to compare several distribution, but it is just an example of its applications. Some work should be devoted to change the definitions of fixed and random effects. Gideon Fell 10:33, 14 March 2007 (UTC)
[edit] Factorial ANOVA
According to "Statistics for experimenters" by Box, Hunter and Hunter the use of ANOVA makes no sense for factorial experiments (section 5.10 "Misuse of the ANOVA for 2^k factorial experiments"). This appears to be because each combination of factors only has a single degree of freedom, so the value actually calculated is equivalent to referral to a t table. This seems to be a common misconception. —The preceding unsigned comment was added by 129.215.37.22 (talk) 20:46, 14 March 2007 (UTC).
