Study
Opening the study…
Study
Opening the study…
What the work was done with, as its author lists it, so someone else can get the same things and do it again.
Other
CDC/NCHS NHANES 2011–2012 and 2013–2014 public-use DEMO, MCQ, CFQ files
https://wwwn.cdc.gov/nchs/nhanes/
Six original XPT files referenced in data/external.json by official HTTPS URL, SHA-256 and byte count. CDC/NCHS de-identified these records and released them for public use. Only aggregate results are distributed.
Software
Python 3.12 with NumPy, pandas and SciPy
Pinned dependencies in env/requirements.txt; original XPT reading, SHA-256 checking, deterministic survey ratios and Taylor variance.
Other
CDC survey design and cognitive variable documentation
https://wwwn.cdc.gov/nchs/nhanes/tutorials/varianceestimation.aspx
Also https://wwwn.cdc.gov/nchs/nhanes/tutorials/weighting.aspx and CFQ_G/CFQ_H and MCQ_G/MCQ_H codebooks beside the official data files. Pooled MEC weights divided by two; SDMVSTRA and SDMVPSU identify the public survey design.