**322 manova questions.**

A bit of background before the main dish:
I am attending a course, where for the first time (I know, It's kind of suprising) in my university career we were given set of data and said to conclude some ...

I'm currently having trouble defining what type of ANOVA I need to run as well as how to run it correctly. This is the following setup:
I have 4 groups of 30 people doing a 2-session task (one after ...

I am using school-level data to compare mean scores for two groups (Group A schools and Group B schools), as measured by a series of indicators: 1) grade-level exam percentile, 2) percent of male ...

I'm having trouble determining the right test for an experiment.
You have a sample pool of individuals (patients). You take two independent measurements ...

I have to analyse 8 independent variables (IV) toward 8 dependent variables (DV) in my research. The IV is nominal while DV are ordinal (likert-scale). I run the normality test and the result is zero (...

I have a between subject variable "treatment" and have a pre and a post measurement for each subject (50 per treatment = 100). The multivariate outcome are bacterial abundances. I control for 2 ...

I have run a phylogenetic manova in R and my data consists of 82 observations and 2 in my group.
The summary table that is returned shows Df for my group as 1 (which I understand) yet my Df for the ...

I want to perform a MANOVA in SPSS as follows: i have a independent variable that consists of three groups (- of which the group sizes are not equal), and six dependent variables.
When checking the ...

I have an experiment where participants:
see four scenarios (words and a picture)
two dichotomous variables (the picture and a headline) in the scenarios are manipulated (hence the four scenarios or ...

I am trying to run a replication of a study which used a factorial design (2x2) with three DVs (dependent variables) and subsequently ran three ANOVAs to test their hypotheses. Given that the DVs in ...

I have a sample of 100 participants who have scores on 5 different variables (V1-V5). Some participants took part in a workshop, others did not.
I am interested in investigating the influence of ...

I have data for 352 response ratings that have been categorized as "Low," "Medium," and "High." I would like to compare the differences of five variables across the three categories to see which ones ...

What is the difference between a repeated measures ANOVA over some factor (say experimental condition) and a MANOVA?
In particular one website I stumbled across suggested that MANOVA does not make the ...

Basically, I have a mixed design, with 3 groups (between subjects), and 13 personality traits (within subjects). However, one of the groups has pre- and post- scores. There was a fictional character ...

There are helpful questions and answers for how to calculate the required sample size (or carry out a power analysis) for MANOVA, but not for MANCOVA using the freely-available G Power software.
Is ...

I'm using G*Power to work out how many participants I need. I'll be using a MANOVA, I have two independent variables (Male and Female) and they will be answering 13 different questionnaires so 13 ...

I am applying manova and lda to my data 12 samples (6 groups with 2 samples in each) and 6 measurements.
I used lda form MAS5 package in R and different LDA functions in MATLAB. They all gave me ...

I am hitting a wall and would appreciate some help.
Here is my data (raw data, before computing the means):
...

I have an experiment with a control group and two intervention groups. Measuring a result to several timepoints. I want to see if result is different for different groups for a given time. Since ...

First I would like to indicate I plan to use Bayesian analysis methods (as instructed)
I want to compare the effect of 6 independent variables (IVs) on four dependent variables. The dependent ...

I have panel data with approx. 20,000 observations on different firms and years. In each observation, a firm makes a business decision, deciding for either $A$ and/or $B$ (both are continuous from 0 ...

I have data on which I wanted to perform a MANOVA. However, homogeneity of variance has been violated and the groups sizes are varying a lot (see below). I know about Welch's test and the Kruskall ...

I have a data set on 20 patients. These patients were administered a cognitive test over the duration of their stay in an inpatient clinic. The cognitive test measured 5 different outcomes (like ...

I am working on a data set of intertidal organisms and am looking for a multivariate technique that will help me determine why some groups have different species assemblages than others. I was ...

I have a data set of an insect community composition (17 insect species, raw abundance data, sampled 5 times over 60 days within 24 tanks (4 replicates). There were 3 treatments (free fish, caged fish,...

I have a multivariate regression model $\mathbf{Y}$ = $\mathbf{XB}$ + $\mathbf{E}$ where $\mathbf{Y}$ is $n \times m$.
In my case $\mathbf{n < m}$, the number of columns in $\mathbf{Y}$ is ...

I am designing an experiment to test whether an experimental manipulation for another study has the desired effect. I have 4 pictures showing either cold but competent or warm but incompetent people ...

This is about my PhD thesis where I am trying to see the pattern of memory deficit among different types of hypothyroidism. I have used a between subject group design. I have 1 IV with three levels. I ...

My primary question is how to interpret the output (coefficients, F, P) when conducting a Type I (sequential) ANOVA?
My specific research problem is a bit more complex, so I will break my example ...

I performed an experiment where in which I got very good results when I perform the MANOVA analysis using 3 factors with: 3x3x9 levels.
Then I tried to get a global perspective of the interactions ...

Assume that a two-way mixed (two independent variables (IVs)) MANOVA was conducted. The multivariate interaction effect of the two IVs on the dependent variables (DPs) together was not significant. ...

I conducted experiments to test the effect of a treatment on multiple response variables. Measurements were taken over consecutive rounds (i.e., time steps) of an experiment, with each round ...

I am running a MANOVA in SPSS and I am finding that my Boxâ€™s test of equality of covariance matrices is significant. My sample size is 130 and Iâ€™m comparing 2 groupsâ€”one with 70 participants and one ...

For my statistics course, it is asked that we come up with the best (and most original) analyses to answer the following research question:
Does group influence recidivism?
The variables include
...

I am doing an experiment that is comparing bilingual to monolingual performance across 3 variables. Each variable will be measured randomly 40 times in succession in a computer program (120 trials). ...

In a mixed design I have two independent variables (IVs) and one dependent variable (DV). The DV can also be interpreted with its sub-dimensions. Thus, the formerly (one) DV can be spitted up into ...

I have a question about my MANOVA output.
In the 'Multivariate Tests' table i found a significant main effect of Trust [ F (66.00, 72.00) = 1.62, p < .05 ]. Also, two significant interaction effect ...

First a short description of my dataset:
I have 8 independent binary variables with the values 0 and 1 (say something about characteristics of the subject line of an e-mail)
I have 7 dependent ...

I am stuck in deciding which statistical test would be more appropriate in my case. My research questions are whether or not in the gait analysis there are differences in pressure between ten foot ...

Kind people,
I want to measure if there is any difference in the use of newsframes in 198 news articles between the 9 countries who own nucleair weapons. I have created these frames with a factor ...

I have a group of people who have undergone one of two procedures. The effect of this has been measured at yearly time points. Am i correct in using the MANOVA test to assess the differences between ...

I have a rather difficult dataset. One measurement is non-normal and zero-inflated and could not be transformed to normality. Thus, a glm was used. Another set of ...

I have a dataset with 1652 samples collected from 6 sites, classified in three types: forest, stubble and pasture. I have extracted 26 metrics from them. I would like to identify the variables that ...

I have been following this tutorial to perform simple main effects on a multivariate data set that shows a significant interaction between two factors. I can't find any other tutorial that does this ...

I'm testing if/how the two factors C and V affect the dependent variables fric and ...

I'm doing a longitudinal study of healthy patients (so I'm studying them over time ... say at age 7,8,9,10,11,12)
I think my independent variables would be: Age (continuous) and sex (2 categories)
...

I have 2 x 4 ANOVA design with multiple dependent variables (there are several hundreds of DVs). The first factor is gender the second is nationality. I want to test hypotheses that there are ...

I am trying to run a Manova (from the car package) on this model like so:
...

I have a datasets with samples from various locations. At each of these locations I measured the concentrations of various genes. I saved the results in pandas dataframe and would like to compare the ...

I have a dataset that contains 3 variables:
A categorical variable in form of names (categories)
Two numerical variables with a metric scale level (stars and review_count)
My goal is to find out ...

- anova
- r
- multivariate-analysis
- repeated-measures
- regression
- spss
- hypothesis-testing
- multiple-comparisons
- t-test
- multiple-regression
- mixed-model
- statistical-significance
- experiment-design
- nonparametric
- discriminant-analysis
- correlation
- post-hoc
- mancova
- group-differences
- sample-size
- factor-analysis
- biostatistics
- ancova
- bonferroni
- assumptions

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