Multivariate ANalysis Of VAriance (MANOVA) is a generalization of ANOVA for the case with several dependent variables.
Questions tagged [manova]
425 questions
6
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How is MANOVA a case of the GLM?
It's easy and convenient to teach students the following regression equation
$$
Y=\beta_0 + \beta_1X_{\text{(continuous)}} + \varepsilon \\
\text{where }\varepsilon\sim\mathcal N(0, \sigma^2)
$$
and that t-tests can also be regarded as an instance…
user1205901 - Слава Україні
- 12,873
2
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1 answer
Is there a smallest possible sample size for MANOVA (post-hoc)
I am testing two DV and two IV using a two-way MANOVA. I have four groups. I had used g*power to recommend a sample size, however I have not yet achieved this recommended sample size. Instead I have 11 samples from 11 random participants. I…
Enviro
- 21
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what is the theoretical basis of Pillai's trace test statistic?
what is the theoretical basis of Pillai's trace test statistic? I haven't found any in-depth treatment of it online.
2
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1 answer
When should I use split files on a manova?
I am performing a MANOVA and when I use split files I get significant interactions. However if I don´t split the file I do not get any significant interactions.
I am interested in knowing how attention to visual stimulus is affected under two…
1
vote
2 answers
A is correlated with B/ A has an impact on B
I've been reading papers to collect materials for my bachelor thesis,
and I came across this question and wasn't sure if my understanding of the concept is correct.
Is "A is correlated with B" the same as " A has an impact on B"?
Further, if a study…
lin kathy
- 13
- 2
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Response surface Analysis.Analysis of Variation using MATLAB
How can I do Analysis of variation(ANOVA) and Response surface analysis for two factors on a 3 dimensional(17x3) input and corresponding 17x1 output data using MATLAB? If i could get required codes in MATLAB,it would be quite better.
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How to check if conditions for MANOVA are satisfied by data?
For the MANOVA model, we assume $X_{lj}=\mu+\tau_{l}+\epsilon_{lj}$, where $\epsilon_{lj}\sim^{iid} N(\mathbf{0},\Sigma)$.
How can we test/assess whether $\epsilon_{lj}\sim^{iid} N(\mathbf{0},\Sigma)$ or not? We may assume that they have the same…
An old man in the sea.
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Interpretation of a MANOVA
I'm trying to do a MANOVA, checking the distribution to a dataset of multiple species to three different variables.
Please see https://stackoverflow.com/questions/40196781/did-i-just-do-an-ancova-or-manova for original post.
I got a reply there,…
metazoa
- 21
1
vote
2 answers
MANOVA hypothesis
If we fail to reject the null hypothesis of MANOVA at an alpha level, does that mean that all the underlying univariate ANOVA tests will not be significant as well at the same alpha level?
Tommy Yu
- 135
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Small, unequal, sample size significance using MANOVA
I am testing the hypothesis, "there is no difference between 3 materials", with a small sample size. I have 3 materials and 2 DVs (test 1-2). They also have a different number of replications as seen below. Six material-1, two material-2, and two…
Lino
- 1
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Will Three Manovas be appropriate?
I’m running a correlations analysis. Hypothesis is that group 1 will score higher in subscale measures of socioemotional dimensions. Dependent variables- three different learning style groups(smallest group is group 1). independent variables= 3…
Heather
- 1
0
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1 answer
Why would a Split-plot ANOVA test provide less statitical evidence of an interaction term than MANOVA
Running both a Split-plot ANOVA and a MANOVA on a repeated measure analysis data set and while both methods provide statically significant results the F values are really different. I would have thought they would be closer together.
Jeff
- 167
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Normality assumption in MANOVA
Data set has 2 dependent variables and 1 independent variable with 3 groups. Normality assumption of MANOVA says that variables has to be normally distributed within the groups. My data set has 30 cases (10 in each group) so I took a look at…
user23709
- 101
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1 answer
Confused about which variables should be dependent and independent in this MANOVA
I am currently doing research on social media and how it can effect depression, anxiety and stress scale (DASS) scores. I have two age groups (18-25, 26-35) and also took scores on narcissistic personality inventory (NPI). I'm struggling to know…
Emily
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-1
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1 answer
How do I interpret hierarchical regression results?
How do I interpret hierarchical regression results?
user29256