Questions tagged [design-based-inference]
The design-based-inference tag has no usage guidance.
10
questions
0
votes
0
answers
10
views
What is design-based validation and what is the difference to CV?
In Wadoux et al. 2021 I came across two modes of statistical inference, design-based and model-based. I get the difference between the two modes and I know what that means regarding a sampling scheme (...
1
vote
1
answer
427
views
Meaning of design matrix in context of Bayesian B-Spline regression?
I'm learning about modeling B-Splines using PyMC3. The design matrix of splines (apparently) can become quite complicated, so it's easier to delegate this construction to an API, Patsy. In the context ...
2
votes
0
answers
61
views
Ex-post grouping blocks, when analyzing blocked randomization experiment, to avoid $N_b=1$ blocks
In an experiment I conducted, randomization was stratified geographically and then blocked by the baseline outcome variable, $x$. That is, within each strata, $s$, I grouped observations into blocks, $...
4
votes
1
answer
416
views
Proof that random assignment guarantees the same probability for the individual to be selected?
Consider a completely randomized design, where every unit is randomly assigned to a treatment group. Let's say we have 30 observations and 3 treatment groups. When we choose one observation at random, ...
3
votes
1
answer
79
views
Multistage Survey Sample for Sock Color
Here is the setup:
We want to estimate the proportion of people in a country who wear black socks versus not-black socks. We have 100 cities (primary sampling units) in the country. In each city ...
0
votes
1
answer
23
views
Proper tests to examine parameter/treatment effects?
I am running simulation models on 100 plots randomly selected from a real study area. I am testing the effect of different modeled treatments that are applied uniformly across the study area. The data ...
2
votes
1
answer
191
views
Are sampling designs characterized by their first and second-order inclusion probabilities?
If you have two sampling designs $p_1(\cdot)$ and $p_2(\cdot)$ (defined on the same set of samples $\mathcal{S}$ from the same population $\mathcal{U}$) such that they induced the same inclusion ...
1
vote
1
answer
256
views
Study design using multinomial vs logistic regression?
Suppose that I have a categorical response variable that consists of group 1-3, and I hope to see if predictors can differentiate group 1 vs group 3 (group 2 not included). The response variable is ...
3
votes
0
answers
77
views
How is the hazard ratio in Cox proportional hazard models affected by the case sampling?
I'm trying to conduct survival analysis using Cox proportional hazard models, looking at a biomarker for heart disease. Age is a major risk factor, so I'm modeling the age as the time scale (counting ...
3
votes
2
answers
374
views
In survey sampling, have calibration margins to be known (estimated with 0 variance)?
Calibration estimators in survey sampling (as defined by Deville and Särndal, and implemented for example in the SAS macro "Calmar") generalize many other calibration estimators, including post-...