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1. [:FAQ/Sattherthwaite:Why are the degrees of freedom not whole numbers?]  1. [[FAQ/SattherthwaiteWhy are the degrees of freedom not whole numbers?]] 
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1. [:FAQ/ttestEXC:How do I compare a mean to a constant in EXCEL (onesample t)?]  1. [[FAQ/ttestEXCHow do I compare a mean to a constant in EXCEL (onesample t)?]] 
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1. [:FAQ/ciplots:How do I calculate a 95% confidence interval for the group means from oneway ANOVAs (using either a within or between subjects factor)?]  1. [[FAQ/ciplotsHow do I calculate a 95% confidence interval for the group means from oneway ANOVAs (using either a within or between subjects factor)?]] 
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1. [:FAQ/ttst:How do I compute a ttest and F ratio using only summary measures in 2x2 between and within subjects ANOVA?]  1. [[FAQ/ttstHow do I compute a ttest and F ratio using only summary measures in 2x2 between and within subjects ANOVA?]] 
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1. [:FAQ/df:How do I work out degrees of freedom for terms in an ANOVA?]  1. [[FAQ/dfHow do I work out degrees of freedom for terms in an ANOVA?]] 
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1. [:FAQ/E:What does a number containing an 'E' signify and how do I remove it?]  1. [[FAQ/EWhat does a number containing an 'E' signify and how do I remove it?]] 
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1. [:FAQ/SumsOfSquaresTypes:In ANOVA and Regression, what do the various different types of Sums of Squares mean, and does the choice matter?]  1. [[FAQ/SumsOfSquaresTypesIn ANOVA and Regression, what do the various different types of Sums of Squares mean, and does the choice matter?]] 
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1. [:FAQ/subsrandom:Can I use subjects as a random or fixed factor in an ANOVA?]  1. [[FAQ/subsrandomCan I use subjects as a random or fixed factor in an ANOVA?]] 
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1. [:FAQ/Rss:Sums of squares used by R in lm, lmer and aov]  1. [[FAQ/RssSums of squares used by R in lm, lmer and aov]] 
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1. [:FAQ/wmeans:A note about unequal group sizes in ANOVA]  1. [[FAQ/wmeansA note about unequal group sizes in ANOVA]] 
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1. [:FAQ/sstypes:A note about different sums of squares in unbalanced factorial ANOVAs]  1. [[FAQ/sstypesA note about different sums of squares in unbalanced factorial ANOVAs]] 
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1. [:FAQ/FVars: What is the variance of the mean of my transformed data?]  1. [[FAQ/FVars What is the variance of the mean of my transformed data?]] 
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1. [:FAQ/VarMSE: What is the value of the error variance for raw data using that of its scalar transformed data?]  1. [[FAQ/VarMSE What is the value of the error variance for raw data using that of its scalar transformed data?]] 
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1. [:FAQ/rmform: How do I format data for input into a repeated measures analysis in SPSS?]  1. [[FAQ/rmform How do I format data for input into a repeated measures analysis in SPSS?]] 
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1. [:FAQ/transp: What does the TRANSPOSE ALL DATA option in the RESTRUCTURE menu do in SPSS?]  1. [[FAQ/transp What does the TRANSPOSE ALL DATA option in the RESTRUCTURE menu do in SPSS?]] 
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1. [: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).]  1. [[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).]] 
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1. [:FAQ/glmrm: How do I perform a repeated measures analysis of variance in SPSS?]  1. [[FAQ/glmrm How do I perform a repeated measures analysis of variance in SPSS?]] 
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1. [:FAQ/glm99rm: How do I perform a repeated measures analysis of variance in SPSS involving repeated measures factors with more than 99 levels?]  1. [[FAQ/glm99rm How do I perform a repeated measures analysis of variance in SPSS involving repeated measures factors with more than 99 levels?]] 
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1. [:FAQ/anovaR: How do I perform a repeated measures analysis of variance in R including correcting for sphericity?]  1. [[FAQ/anovaR How do I perform a repeated measures analysis of variance in R including correcting for sphericity?]] 
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1. [:FAQ/aovgens: How do I perform a repeated measures analysis of variance in GENSTAT (and R and MATLAB)?]  1. [[FAQ/aovgens How do I perform a repeated measures analysis of variance in GENSTAT (and R and MATLAB)?]] 
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1. [:FAQ/aovmtb: How do I perform a repeated measures analysis of variance in MINITAB (and use this approach to obtain posthoc tests on a repeated measures factor in SPSS)?]  1. [[FAQ/aovmtb How do I perform a repeated measures analysis of variance in MINITAB (and use this approach to obtain posthoc tests on a repeated measures factor in SPSS)?]] 
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1. [:FAQ/rpcon: How do I perform a nonstandard comparison of means in a repeated measures anova in SPSS?]  1. [[FAQ/rpcon How do I perform a nonstandard comparison of means in a repeated measures anova in SPSS?]] 
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1. [:FAQ/bwss: What is the effect of dropping a between by within subjects interaction on other terms in a mixed anova?]  1. [[FAQ/bwss What is the effect of dropping a between by within subjects interaction on other terms in a mixed anova?]] 
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1. [:FAQ/Interaction:How do I work out the meaning of a significant interaction?]  1. [[FAQ/InteractionHow do I work out the meaning of a significant interaction?]] 
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1. [:FAQ/Int4:How do I interpret a fourway interaction?]  1. [[FAQ/Int4How do I interpret a fourway interaction?]] 
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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?]  1. [[FAQ/ancregCan 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?]] 
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1. [:FAQ/constantcov:Inappropriate use of a constant covariate in repeated measures ANCOVA]  1. [[FAQ/constantcovInappropriate use of a constant covariate in repeated measures ANCOVA]] 
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1. [:FAQ/Manova:How do I adjust for varying covariates in a repeated measures ANOVA in SPSS?]  1. [[FAQ/ManovaHow do I adjust for varying covariates in a repeated measures ANOVA in SPSS?]] 
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1. [:FAQ/Manzeroes:How do I obtain an interaction in SPSS to describe how a fixed covariate influences a repeated measures interaction?]  1. [[FAQ/ManzeroesHow do I obtain an interaction in SPSS to describe how a fixed covariate influences a repeated measures interaction?]] 
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1. [:FAQ/WsubEffects: What is the difference between within subjects effects and within subjects contrasts in SPSS?]  1. [[FAQ/WsubEffects What is the difference between within subjects effects and within subjects contrasts in SPSS?]] 
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1. [:FAQ/Auc: What summary measures can I use to describe repeated measures?]  1. [[FAQ/Auc What summary measures can I use to describe repeated measures?]] 
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1. [:FAQ/polybs: How do I test for a trend between group means representing different subjects?]  1. [[FAQ/polybs How do I test for a trend between group means representing different subjects?]] 
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1. [:FAQ/Tukey: How do I interpret subsets in Tukey's HSD output?]  1. [[FAQ/Tukey How do I interpret subsets in Tukey's HSD output?]] 
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1. [:FAQ/TukeyKramer: How do I compare all pairwise comparisons in a between subjects anova (and in a repeated measures anova)?]  1. [[FAQ/TukeyKramer How do I compare all pairwise comparisons in a between subjects anova (and in a repeated measures anova)?]] 
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1. [:FAQ/SimpleMainEffects:Why won't SPSS let me do post hoc tests involving a withinsubjects factor?]  1. [[FAQ/SimpleMainEffectsWhy won't SPSS let me do post hoc tests involving a withinsubjects factor?]] 
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1. [:FAQ/SimpleEffs:How do I do a simple effects analysis in SPSS?]  1. [[FAQ/SimpleEffsHow do I do a simple effects analysis in SPSS?]] 
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1. [:FAQ/pvs:How do I adjust pvalues for number of comparisons using SPSS, R or in a spreadsheet?]  1. [[FAQ/pvsHow do I adjust pvalues for number of comparisons using SPSS, R or in a spreadsheet?]] 
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1. [:FAQ/SpssBonferroni:Adjusted pvalues]  1. [[FAQ/SpssBonferroniAdjusted pvalues]] 
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1. [:FAQ/RepeatedMeasuer:Repeated measures, Mixed models and Splitplot designs: A Rant]  1. [[FAQ/RepeatedMeasuerRepeated measures, Mixed models and Splitplot designs: A Rant]] 
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1. [:FAQ/ResidsRepMeas:How do I check Normality assumptions in repeated measures analyses in SPSS?]  1. [[FAQ/ResidsRepMeasHow do I check Normality assumptions in repeated measures analyses in SPSS?]] 
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1. [:FAQ/Mauchly:What is the formula for Mauchly's W used for testing sphericity in univariate repeated measures anova?]  1. [[FAQ/MauchlyWhat is the formula for Mauchly's W used for testing sphericity in univariate repeated measures anova?]] 
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1. [:FAQ/orthopolys:Fitting linear orthogonal polynomials]  1. [[FAQ/orthopolysFitting linear orthogonal polynomials]] 
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1. [:FAQ/lincon:How do I compare group means in a nonstandard posthoc contrast?]  1. [[FAQ/linconHow do I compare group means in a nonstandard posthoc contrast?]] 
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1. [:FAQ/Dunnett:How do I compare a set of group means with a control group mean?]  1. [[FAQ/DunnettHow do I compare a set of group means with a control group mean?]] 
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1. [:FAQ/intsg:How do I manually compute tstatistics to compare means in a repeated measures ANOVA having 3 or more groups?]  1. [[FAQ/intsgHow do I manually compute tstatistics to compare means in a repeated measures ANOVA having 3 or more groups?]] 
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1. [:FAQ/ss:Formulae for interaction sums of squares in balanced designs]  1. [[FAQ/ssFormulae for interaction sums of squares in balanced designs]] 
FAQs for analysis of variance
How do I compare a mean to a constant in EXCEL (onesample t)?
What does a number containing an 'E' signify and how do I remove it?
A note about different sums of squares in unbalanced factorial ANOVAs
What is the value of the error variance for raw data using that of its scalar transformed data?
How do I format data for input into a repeated measures analysis in SPSS?
What does the TRANSPOSE ALL DATA option in the RESTRUCTURE menu do in SPSS?
How do I perform a repeated measures analysis of variance in SPSS?
How do I perform a repeated measures analysis of variance in R including correcting for sphericity?
How do I perform a repeated measures analysis of variance in GENSTAT (and R and MATLAB)?
How do I perform a nonstandard comparison of means in a repeated measures anova in SPSS?
Inappropriate use of a constant covariate in repeated measures ANCOVA
How do I adjust for varying covariates in a repeated measures ANOVA in SPSS?
What is the difference between within subjects effects and within subjects contrasts in SPSS?
What summary measures can I use to describe repeated measures?
How do I test for a trend between group means representing different subjects?
Why won't SPSS let me do post hoc tests involving a withinsubjects factor?
How do I adjust pvalues for number of comparisons using SPSS, R or in a spreadsheet?
Repeated measures, Mixed models and Splitplot designs: A Rant
How do I check Normality assumptions in repeated measures analyses in SPSS?
How do I compare group means in a nonstandard posthoc contrast?
How do I compare a set of group means with a control group mean?
Formulae for interaction sums of squares in balanced designs