# Questions tagged [non-independent]

Data, events, processes, etc, are non-independent if knowledge of 1 provides some information about the state or value of the other.

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### How to conduct sensitivity analyses for cluster / sample in three-level meta analyses in metafor?

Problem am wanting to do a leave1out sensitivity analysis of an rma.mv (three-level) meta-analysis, where "1" is a cluster / sample (rather than a single effect size). I understand that some ...
27 views

### Assessing the Impact of a Specific Treatment on Survey Results: A Wilcoxon Signed-Rank Test Approach on Paired Samples

I have conducted a survey with several scale questions ranked 1-10 on a sample of n=18. I applied a specific treatment before and after the survey. However, I'm unsure about how to analyze the data ...
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### Using linear mixed models to model nested data

I divided participants into different pairs according to their language proficiency score, and now I ask participants in different pairs to have conversations, so every participant now have a pair ID (...
1 vote
36 views

### Finding inequality relationships in stochastic data

Consider random variables $X_i$ such that the following holds: $$a_1 X_1 + \dots + a_n X_n -k \geq 0 + \epsilon$$ where the $a_i$ are constants and $\epsilon$ is random noise. How is it possible to ...
1 vote
47 views

### Normality test for non-independent observations

I want to check if my data's distribution is normal. Thought of visual and formal test. One thing I'm not sure about – my observations are respiratory measurements of patient. Each patient measure ...
1 vote
8 views

### Compairing multiple distributions from repeated measures design to a refrence value

I have 24hrs of temperature measurements taken in one minute intervals for a set of individuals. Thus, there is a non-independent distribution of temperatures for each individual as each measurement ...
11 views

### Similarity measure over time

I'm completely new to this so I apologise in advance if my question isn't even phrased correctly. I want to analyse changes in similarity of two interacting entities over time. Each entity is ...
72 views

### Does strict monotonicity imply image variable is dependent with domain variable?

Suppose a random variable $X$ and a strictly monotone (and measurable) function $f$ in which $f(X)$ is always defined. Does it necessarily hold that $f(X)$ is statistically dependent with X? I should ...
1 vote
8 views

### compare time-dependent proportions to baseline

I measured changes in the appearance of chronic wounds. There are four levels of this variable that can be ordered from the worst to best as necrotic < sloughy < granulating < epithelialising....
1 vote
42 views

### Calculate ROC probability for highy correlated variables

The usual assumption of i.i.d. is made with such frequency that it risks being applied to things like difference of correlations for highly dependent (correlated) variables. To calculate dependent ...
1 vote
21 views

### Trying to decide whether the sample is dependent or independent

I have a problem deciding whether my data has dependant/pairwise or independant samples. I have read multiple online guides now, but I can't figure it out: I am testing about 10 different surface ...
27 views