Timeline for Are the differences between sampling clusters and sampling strata, conceptual, methodological, neither or both?
Current License: CC BY-SA 4.0
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| Jul 21, 2020 at 22:44 | history | edited | StasK | CC BY-SA 4.0 |
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| Jul 19, 2020 at 20:47 | comment | added | astel | You can see my edits for further explanation | |
| Jul 19, 2020 at 20:46 | history | edited | astel | CC BY-SA 4.0 |
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| Jul 19, 2020 at 20:33 | history | edited | astel | CC BY-SA 4.0 |
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| Jul 19, 2020 at 20:20 | comment | added | Alexis | The quoted sentence is not so much unclear, as it appears utterly divorced from any substantive motivation for a researcher designing a study. Contrast with "stratified sampling is critically important to representing minority populations (e.g., sexual minorities), who may comprise a small portion of an overall population, and thus be excluded from valid representation in simple random samples." (But perhaps this is in error, and cluster sampling and stratification bear no relationship to the topic of research?) | |
| Jul 19, 2020 at 20:04 | history | edited | astel | CC BY-SA 4.0 |
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| Jul 19, 2020 at 19:50 | comment | added | astel | I don’t know what is unclear about that for you. What would you like me to expound upon? | |
| Jul 19, 2020 at 19:34 | comment | added | Alexis | "A good stratification variable is one that will cause within strata homogeneity and between strata heterogeneity." I am astounded at the lack of substance to this sentence. | |
| Jul 19, 2020 at 19:24 | comment | added | astel | Well, as my answer states, a good clustering variable is one that creates clusters with within cluster heterogeneity and between cluster homogeneity. A good stratification variable is one that will cause within strata homogeneity and between strata heterogeneity. How do you know your cluster/strata variable will give this? Subject matter knowledge mostly. Practically speaking these variables will come across naturally. Typical variables might have to do with geography or demographically variables such as age/sex | |
| Jul 19, 2020 at 18:58 | comment | added | Alexis | How would you know a stratifying or clustering variable if you bumped into one in a dark alley? (You might also examine the concluding sentence in my question.) | |
| Jul 19, 2020 at 18:57 | comment | added | astel | You’ll have to explain what you mean by conceptual | |
| Jul 19, 2020 at 18:21 | comment | added | Alexis | Thanks astel. Can you speak to my concerns about conceptual distinctions? (See my comments on carlos' answer, for more of my interest on this.) | |
| Jul 19, 2020 at 18:04 | history | edited | astel | CC BY-SA 4.0 |
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| Jul 19, 2020 at 17:57 | history | answered | astel | CC BY-SA 4.0 |