All Questions
13 questions
12
votes
4
answers
26k
views
MANOVA and correlations between dependent variables: how strong is too strong?
The dependent variables in a MANOVA should not be "too strongly correlated". But how strong a correlation is too strong? It would be interesting to get people's opinions on this issue. For instance, ...
- 3,472
8
votes
1
answer
7k
views
How can MANOVA report a significant difference when none of the univariate ANOVAs reaches significance?
I would just like to ask if it is normal for the values from my multivariate tests to be significant but for the values from my univariate tests of between-subjects effects table to be insignificant.
...
- 83
5
votes
1
answer
49
views
Is Repeated Measure MANOVA appropriate here?
I have data on the yearly number of doctor visits for patients from 2020 to 2022, along with characteristics associated with these visits. During each visit, patients are asked questions about their ...
- 203
4
votes
2
answers
13k
views
When to interpret multivariate tests when performing repeated-measures ANCOVA?
Yesterday, I ran a repeated-measures ANCOVA. The purpose was to determine the usability of two computer systems, call them 1 and 2. Each subject completed three (conceptually different) tasks, call ...
- 4,027
2
votes
2
answers
8k
views
Multiple dependent variables in factorial design
I have a 2x2x2 factorial design with two dependent variables (lets say height and weight). I can examine the effect of the three factors for each dependent variable separately. But I also want to ...
- 21
2
votes
1
answer
12k
views
How do I compare two groups by several dependent variables and get 1 p-value as a result?
Suppose I have two groups and several dependant variables. I would like to show statistically whether the two groups are different or not, based on the combination of these dependant variables. The ...
- 619
2
votes
1
answer
31
views
Which statistical test to use analyzing multivariate brain scan data (Channels, Frequency Bands, Measures)?
As a Computer Science student inexperienced in statistics, I'm looking for some advice on selecting the appropriate statistical test for my dataset.
My data, derived from brain scans, is structured ...
- 21
1
vote
1
answer
2k
views
Are my PCA groups significantly different?
I am studying the feeding behaviour of deep sea fishes, and have produced a dataset containing percentages for 20 different fatty acids (totalling 100%) for 32 individual fish. I have performed PCA (...
1
vote
1
answer
40
views
What type of Test should I conduct?
The same participants are exposed to two different screen sizes 27" (stimulus A) and screen size 9.7" (stimulus B). Independent var is "screen" with two levels - sizes. After exposure to stimulus A, ...
- 657
1
vote
1
answer
744
views
Two independent groups and three dependent variables
How do I test for differences between two groups on three dependent variables? Is that an ANOVA or multiple t-tests with an adjusted alpha level?
- 11
1
vote
0
answers
2k
views
MANOVA and Multivariate Regression: Related as ANOVA and Regression?
If I wish to find the relationship between a continuous independent variable (IV) and a single continuous dependent variable (DV), I can conduct a regression (or a correlation, as there is only one IV)...
- 834
1
vote
0
answers
603
views
Multivariate repeated measures without between subject factors (Manova vs Anova)
I'm trying to run an analysis in SPSS on some EEG data, obtained with the following design:
1 within subject factor,
6 dependent outcome variables.
First, I was thinking about a repeated measures ...
- 11
0
votes
1
answer
253
views
Statistical analysis of amino acid profiles, quantitative vs qualitative methods?
I work on a study comparing the amino acid profile of 5 sample groups with 3 replicates in each group. This is how the data looks like except that there are 17 columns (one for each amino acid) in ...
- 165