Questions tagged [sample-weighting]
The sample-weighting tag has no usage guidance.
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Issues calculating SMDs after applying IPTW weights
I get the exact same standardized mean differences (SMDs) before and after applying inverse probability of treatment (IPTW) and stabilized IPTW weights to my data. I reproduced this below using the ...
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How to access weighted group means and standard errors after using mice and WeightIt? [closed]
Some background: I imputed and weighted data from two groups of people, one group in a certain organization and one outside of it. Ultimately, I want to compare how they develop psychological trait X ...
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How to compare initial means between weighted cases?
I want to check if the mean value of a certain personality trait differs between young adults in organization X and young adults outside of the organization, who are identical in terms of education ...
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How to cope with pre-trend violations in a stacked DiD?
I want to analyze several events using a difference-in-difference approach. Since the events occurred at different times, a staggered or stacked DiD approach would be suitable. In my case, I have many ...
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How can I decrease the size of a particular group of an independent nominal variable within a sample without compromising the integrity of the sample?
Our team conducted an online survey to discover citizens' attitude on a particular topic. The total number of responses collected is 900. It's apparent that this is a non-probability sample of ...
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Are there coventions on reporting weighted sample sizes?
Suppose I analyze survey data and calculate weighted means. Should I report the sample size if it differs from the unweighted sample size, as would be the case with non-normalized weights? It seems ...
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Multilevel Regression and Poststratification (MRP) weighting in the opposite direction to Poststratification alone
We are using MRP to derive test norms for an IQ test (Culture Fair Test, CFT) based on the TwinLife data. We adjust for age, sex, education, and migration background. Although a probability sample, ...
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Complex survey design with multiple waves
The organization I work for has collected data from individuals in multiple waves. Their goal was to collect 333 individuals in 6 different groups (genderXgroup). If the first Wave did not reach 333 ...
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What is the correct way to incorporate sampling weights into a spatial regression?
I want to know what the proper procedure is for incorporating sampling weights into a regression. I am running a spatial regression using survey data in R. I'm using the function ...
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Suggested methods for generalizing survey results from one population to another, with individual level data for both
I have two datasets. The first dataset includes my variables of interest, as well as a large set of respondent characteristics. My second dataset includes matching respondent characteristics for a set ...
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When do numerical transforms need sample-weighting before applying linear regression
Just wondering if anyone knows of any good resources for sample-weighting in numerical transformations. That is with the intent of using the transformed data in a linear regression model
I work with ...
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How do scale_pos_weight and sample_weight interact in XGBoost?
Question:
How do scale_pos_weight and sample_weight interact in XGBoost when used at the same time during training? Are they multiplied, added or something else?
Example when added:
Example when ...
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How to perform log-rank test correctly on IPTW weighted groups?
Thank you very much for your attetion!
I am working on an observation study with time-to-event data. The data has multiple covariates say V1-V5. I want to evaluate the treatment effect, so I used IPTW ...
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Weighting linear / logistic regression data points by explanatory variable sample size
[EDIT: had fundamental misunderstanding, rephrasing question - thanks to @whuber for catching that]
I have some pretty simple regressions (linear & logistic) predicting a rate (continuous response ...
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Paired sign and Wilcoxon tests with weighting
In R, I am using the survey package (inverse probability weighting) to conduct these tests on paired data:
Weighted Wilcoxon Signed Rank test
Weighted Sign test
However, I am struggling in doing ...
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