Tagged Questions
0
votes
0answers
26 views
Two IVs (schools) and 3 IVs (grade levels in each) where there are 2 DVs (math and reading scores)
Is MANOVA the correct test? I am looking at 3 grade levels in each of the two middle schools. I want to compare the standardized scores (reading and math) of students in each grade level to the same ...
9
votes
1answer
204 views
Is there a generalization of Pillai trace and the Hotelling-Lawley trace?
In the setting of multivariate multiple regression (vector regressor and regressand), the four major tests for the general hypothesis (Wilk's Lambda, Pillai-Bartlett, Hotelling-Lawley, and Roy's ...
4
votes
2answers
170 views
Two DV's in a 2x2 factorial experiment
I'm trying to investigate the effect on (a) tear resistance and (b) gloss of a piece of film due to additive and extrusion method. I can see that the best results for tear resistance is low additive ...
2
votes
2answers
664 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 ...
5
votes
2answers
467 views
Understanding MANOVA in case of a single predictor
I'm trying to understand the statistical analysis I saw in a clinical study. They measured performance of 3 groups of subjects with a series of performance measures (A, B, C, ..., N). The objective ...
1
vote
0answers
122 views
Dealing with nuisance variables in a MANOVA situation
I have a study in which participants facebook profiles were rated by a group of students. The participants were then randomly allocated into one of three groups: the uncertain condition (where they ...
13
votes
1answer
4k views
Multivariate multiple regression in R
I have 2 dependent variables (DVs) each of whose score may be influenced by the set of 7 independent variables (IVs). DVs are continuous, while the set of IVs consists of a mix of continuous and ...
3
votes
1answer
473 views
Is MANOVA the correct way to handle multiple response variables that are additive?
Context:
I am trying to analyze an experiment on plant community response to two treatments. Here’s a simplified description of the experiment, there are a few extra complications in reality.
...
9
votes
3answers
3k 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, ...
2
votes
2answers
3k 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 ...
