Diff for "FAQ/anovaFAQ" - CBU statistics Wiki
location: Diff for "FAQ/anovaFAQ"
Differences between revisions 80 and 81
 ⇤ ← Revision 80 as of 2012-03-20 11:20:29 → Size: 4500 Editor: PeterWatson Comment: ← Revision 81 as of 2012-03-27 14:06:08 → ⇥ Size: 4552 Editor: PeterWatson Comment: Deletions are marked like this. Additions are marked like this. Line 51: Line 51: 1. [:FAQ/ancreg:Can I do an analysis of covariance using a regression and use this to adjust for regression to the mean?] 1. [:FAQ/ancreg:Can I do an analysis of covariance using a regression (including computation of covariate adjusted means) and use this to adjust for regression to the mean?]

## FAQs for analysis of variance

1. [:FAQ/Sattherthwaite:Why are the degrees of freedom not whole numbers?]

2. [:FAQ/ttestEXC:How do I compare a mean to a constant in EXCEL (one-sample t)?]
3. [:FAQ/ciplots:How do I calculate a 95% confidence interval for the group means from one-way ANOVAs (using either a within or between subjects factor)?]
4. [:FAQ/ttst:How do I compute a t-test and F ratio using only summary measures in 2x2 between and within subjects ANOVA?]
5. [:FAQ/df:How do I work out degrees of freedom for terms in an ANOVA?]
6. [:FAQ/E:What does a number containing an 'E' signify and how do I remove it?]
7. [:FAQ/SumsOfSquaresTypes:In ANOVA and Regression, what do the various different types of Sums of Squares mean, and does the choice matter?]

8. [:FAQ/subsrandom:Can I use subjects as a random or fixed factor in an ANOVA?]
9. [:FAQ/Rss:Sums of squares used by R in lm, lmer and aov]

10. [:FAQ/wmeans:A note about unequal group sizes in ANOVA]
11. [:FAQ/sstypes:A note about different sums of squares in unbalanced factorial ANOVAs]
12. [:FAQ/FVars: What is the variance of the mean of my transformed data?]
13. [:FAQ/VarMSE: What is the value of the error variance for raw data using that of its scalar transformed data?]
14. [:FAQ/rmform: How do I format data for input into a repeated measures analysis in SPSS?]
15. [:FAQ/transp: What does the TRANSPOSE ALL DATA option in the RESTRUCTURE menu do in SPSS?]
16. [:FAQ/restwb: Using the VARSTOCASES command in SPSS to convert repeated measures formatted data to a multilevel model format (and the CASESTOVARS command for the reverse operation).]
17. [:FAQ/glmrm: How do I perform a repeated measures analysis of variance in SPSS?]
18. [:FAQ/glm99rm: How do I perform a repeated measures analysis of variance in SPSS involving repeated measures factors with more than 99 levels?]
19. [:FAQ/anovaR: How do I perform a repeated measures analysis of variance in R including correcting for sphericity?]
20. [:FAQ/aovgens: How do I perform a repeated measures analysis of variance in GENSTAT (and R)?]
21. [:FAQ/aovmtb: How do I perform a repeated measures analysis of variance in MINITAB (and use this approach to obtain post-hoc tests on a repeated measures factor in SPSS)?]
22. [:FAQ/rpcon: How do I perform a non-standard comparison of means in a repeated measures anova in SPSS?]
23. [:FAQ/bwss: What is the effect of dropping a between by within subjects interaction on other terms in a mixed anova?]
24. [:FAQ/Interaction:How do I work out the meaning of a significant interaction?]

25. [:FAQ/ancreg:Can I do an analysis of covariance using a regression (including computation of covariate adjusted means) and use this to adjust for regression to the mean?]
26. [:FAQ/constantcov:Inappropriate use of a constant covariate in repeated measures ANCOVA]
27. [:FAQ/Manova:How do I adjust for varying covariates in a repeated measures ANOVA in SPSS?]

28. [:FAQ/Manzeroes:How do I obtain an interaction in SPSS to describe how a fixed covariate influences a repeated measures interaction?]

29. [:FAQ/WsubEffects: What is the difference between within subjects effects and within subjects contrasts in SPSS?]
30. [:FAQ/Auc: What summary measures can I use to describe repeated measures?]
31. [:FAQ/polybs: How do I test for a trend between group means representing different subjects?]
32. [:FAQ/Tukey: How do I interpret subsets in Tukey's HSD output?]
33. [:FAQ/TukeyKramer: How do I compare all pairwise comparisons in a between subjects anova (and in a repeated measures anova)?]
34. [:FAQ/SimpleMainEffects:Why won't SPSS let me do post hoc tests involving a within-subjects factor?]

35. [:FAQ/SimpleEffs:How do I do a simple effects analysis in SPSS?]

36. [:FAQ/pvs:How do I adjust p-values for number of comparisons using SPSS, R or in a spreadsheet?]