CPES logoCollaborative Psychiatric
Epidemiology Surveys

FAQs: Sample

  1. Are all questions asked of all respondents?

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  2. Are the NSAL and NLAAS Latino samples different?

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  3. Are the NSAL and NLAAS non-Latino white samples different?

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  4. Are there enough Native Americans in the CPES data set for analysis?

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  5. Did NCS-R and NCS interview the same respondents?

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  6. How many NSAL Afro Caribbeans are there, and how many of those are Hispanics?

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  7. How many NSAL Afro Caribbeans are there, and how many of those are Hispanics?

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  8. How was CPES post-stratified to represent its targeted population?

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  9. Was more than one adult in a household interviewed in CPES?

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  10. What is the gender breakdown in NCS-R Part 2?

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  11. What is the U.S. population that CPES represents?

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  12. What was the response rate for each study?

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  13. Why are my weighted frequencies smaller than the unweighted frequencies?

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  14. Why did NCS-R have two parts?

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  15. Why did NSAL white respondents not receive all questions?

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  16. Why do I get a different number of cases when I use different variables?

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  17. Why do NSAL sample sizes for African Americans and Afro Caribbeans drop significantly when I use complex survey design measures?

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