All Questions
Tagged with multiple-comparisons multivariate-analysis
40
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What criterion to use to compare multiple correlations of binary variables?
I have $N$ definitions of certain properties of countries (for example, if the country is "democratic", "totalitarian" etc.), and want to test how consistently different people ...
- 101
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33
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I'm struggling to find which is the right statistical test to use?
I have two variables: cell death and diet, but on the diet variable I have several groups that I want to compare. I was thinking of doing multiple Mann-Whitney tests, but that would be very time ...
- 11
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230
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Multiple group comparisons in a linear mixed-effect model
[The background]
I have a category variable called group, which has five levels indicating the types of populations (g1, ...
- 23
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Selecting the top 10 best candidates for an experiment
I'm a newbie here. But I want to select 10 retailers to onboard in an experiment, but that retailers need to be important enough to be there and bad enough to drive an impact.
So in my dataset I will ...
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317
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Best approach to analyze multiple groups in RNAseq experiment
I am analyzing a RNAseq experiment constituted of 5 different groups of alcohol drinking mice: non drinkers, low drinkers, high-resistant, high-sensitive and water control. My ultimate goal is to ...
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38
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Question on Multiple Regression (vs multiple single regression models)
I have a pretty basic psychology fMRI study and we're trying to identify brain areas correlated with performance on a specific task.
We have one dependent variable, and measurements for each brain ...
2
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1
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349
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Is it necessary to correct p-values for multiple comparisons in multivariate regression?
In this suspiciously brief comment on another article, the author suggests that analysts should only correct for multiple comparisons in univariate regression when the predictor has more than two ...
- 2,043
2
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92
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How to determine how much variation was due to the differences between a group?
I am working on the data set that consists of Patients (after stroke), Time (then can walk after a going through the program), and Program they follow.
...
- 55
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165
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How to know if X variable affects Y variable in (A) model more significantly than (B) model
I am investigating the impact of X variable on Y variable (and its three dimensions: Y1, Y2, Y3) using four models:
Y = X1 + control variables
Y1 = X1 + control variables
Y2 = X1 + control variables
...
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68
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Is this a conventional optimization problem?
Here is a problem I thought of:
Suppose there is a car repair shop and 5 mechanics work there. Everyday, new cars arrive at the shop and each mechanic has to choose 3 cars to work on. In short, the ...
4
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1k
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What is multiple testing and when to use Bonferroni Correction?
I am confused about the concept of multivariate tests.
Let's say we have two use cases:
The 1st use case:
Run a test with different homepage background color
group 1(control): green color
group 2(...
- 71
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215
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Experimental design/test for 3 independent variables and 1-2 qualitative dependent variables?
Say I have a dataset containing age, gender, race, ...
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1
answer
455
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Statistical method to study failure rate data
What are the good statistical methods to study failure rates? For example, let's say I manufacture 100 tire models and I sold 3 million units that hit on road. Let's say I have the manufacture date, ...
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2
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1k
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Change over time between two groups and within groups - Mann Whitney or Kruskal Wallis?
I have two groups (Control and Disease) and for each group a variable y is measured at three time points (0H, 24H, 48H). I want to know two things:
Does y change between Control and Disease at each ...
- 111
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884
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Is the "mvt" (using the multivariate t distribution) accepted way of adjusting for multiple comparisons when reporting to journals?
I use the awesome package multcomp and emmeans in R. These are the places I heard about the "mvt" method for the first time. And, however, it is what it's actually done in the Dunnett or ...
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