All Questions
Tagged with survey-sampling stratification
16 questions
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6
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Studying more than one sampling unit in a single randomization
So we have a list of organizations that dedicate themselves to a certain social service.
Our goal is to ask both laborers and customers an overlapping(but not fully) set of questions for each one of ...
- 11
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49
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Is it appropriate to pre-stratify and post-stratify along different delineations of the same variables in a single survey?
I am working in the context of opt-in, web-based surveys. Often the desire is for accurate population estimates, and often at a country-wide level. The standard approach at this organization is to ...
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24
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How can I show probability of selection change when adding stratification to a survey design
I have a survey that uses a stratified sampling approach with optimal allocation.
The team conducting the survey has asked that we make two changes:
Subdivide one of the strata into smaller pieces. ...
- 123
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1
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194
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How do you calculate the total sample size in stratified sampling?
I know that we can allocate observations from the total sample to each strata either using proportional allocation ($n_{h}/N_{h} = n/N$) or optimal allocation:
$$n_{h} = \left [ \frac{\frac{N_{h}S_{h}}...
- 59
2
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1
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60
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Age and sex standardised incidence rates
If I were to compute age-sex standardised incidence rates based on a simple random sample of a nationwide household survey on hearing loss. Noting that this a sample not the total population, so the ...
- 23
2
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1
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112
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How to update survey weights after fixing strata membership/assignments?
Imagine we conduct a survey using stratified sampling, and after the survey closes, we find out that we had misclassified some of the respondents. They actually belong to different strata than we had ...
- 258
1
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1
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244
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How to resample members from the population who didn't respond after the survey?
I have used stratified random sampling on population to generate the sample.
Now the issue is if after the survey is conducted some of the members in the sample ...
- 63
1
vote
1
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68
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Sample Size determination at coutry level or states levels
A country is stratified into states. A researchers wants to carry out a survey with a main requirement of state level data representation. I wonder if sample size should be determine using country ...
- 2,759
9
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5
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1k
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Are the differences between sampling clusters and sampling strata, conceptual, methodological, neither or both?
I am fuzzy on the distinctions between sampling strata and sampling clusters. Both seem to aim at designs aiming at creating useful estimates of between/within group (strata, cluster) variation, and ...
- 30.7k
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42
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Should I use simple random sampling instead of stratified sampling when some strata have low counts?
I am designing a survey for which I would like to stratify "events" by state / province, creating $h=86$ strata for the particular dataset I'm working with. However, there are some strata with low ...
- 335
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1
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14k
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Neyman allocation and proportional allocation
Suppose that a city has 90,000 dwelling units, of which 35.000 are houses, 45,000 are apartments,
and 10,000 are condominiums. We want to estimate the overall proportion (p) of households
in which ...
- 13
1
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134
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Benefit of scaling survey design weights
In the european social survey the design weights are scaled to the sample size (see quote and source):
As with the design weights also the post-stratification weights are scaled to the sample size, ...
- 86
4
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2
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2k
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Stratified random sampling when strata overlap
I am sure the title might be confusing, but here is what I am dealing with:
I am running a survey at a health care center. The health center has around 15k active visitors. There are 5 departments ...
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1
answer
70
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Random sampling with different stages
I'd appreciate some help solving this sampling issue:
I have select a random sample of people for a survey in a certain country.
The country is divided in 6 regions.
In total, there are 981 ...
- 103
12
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4
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6k
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Using post-stratification weights in R survey package
I am analyzing a dataset that has a variable for post-stratification weights. As this is a complex survey, the plan is to use the R survey package. I have been ...
- 171
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38
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Ideas for sampling design
I have a data base of schools per district and the number of teachers per school. I want to select a sample where between 1 an 10 schools are selected in each district. Once a school is selected, the ...
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