All Questions
Tagged with control-group matching
9 questions
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Matching control group and treatmeant group period in staggered difference-in-differences
I am investigating how different types of electoral systems systems Proportional Representation (PR) or Majoritarian System (MS). influence the level of clientelism in a country. I want to investigate ...
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62
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How to determine the treatment time for untreated in difference-in-differences design
I'm estimating the effect of treatment initiation on health outcomes using a Difference-in-Differences (DiD) design. The timeline is defined relative to the treatment date, not calendar time. For the ...
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3
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1
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315
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Justifying a smaller control group in survey study
I am planning a set of studies that are interlinked. The first study collects information from 400 participants (exposure group), then some psychometrics are performed to assess the questions. In a ...
- 333
3
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1
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56
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Limits to how many control and treatment subjects may be paired in propensity score matching?
I'm working on a difference-in-differences project where we're matching up to 5 control subjects to each treatment subject using a combination of techniques to estimate treatment effects (ATT): exact, ...
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449
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Matching fixed control group to multiple time-varying treatment events so that each control is only used once/uniquely assigned
you have helped me tremendously over the past years and so far, I could find an answer to any the question I had! Thanks to anyone active in this community, I don't know what I would have done without ...
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2
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1
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Should the choice of propensity score matching versus weighting depend on the degree of overlapping of PS distributions?
I heard some opinions that matching is no good since it excludes some subjects. However, if we use PS adjustment or PS inverse probability weighting, is there a requirement on the degree of ...
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91
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For retrospective observational studies how to determine the baseline of control subjects
I understand that for the active treatment group you can consider the start of treatment as baseline. How about the control group?
It is difficulty to do matching without resolving this problem.
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759
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Diff-in-diff with mactched control group
I want to run a diff-in-diff model. To choose an appropriate control group, I use a nearest-neighbor matching model based on several determinants of the outcome variable that I study.
I was ...
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547
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Choosing Location Based Control Group
I have a dataset that tracks activities at particular locations. The dataset is essentially, timestamp, latitude and longitude, indicating an activity at that lat-long and that time. I plan on ...
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