Description Usage Format References
Randomization and statistical inference practices in a stratified random sample of 196 public health articles. The data, provided courtesy of Dr. Matt Hayat, are discussed in Hayat and Knapp (2017). The variables provided in healthjournals are a subset of the variables collected by the authors.
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This data frame contains the following columns:
journal that published the article
AJPH = American Journal of Public Health
AJPM = American Journal of Preventive Medicine
PM = Preventive Medicine
number of authors
"Yes" if data in the article were from a randomly selected (probability) sample
"No" otherwise
"Yes" if study subjects for the article were randomly assigned to treatment groups
"No" otherwise
"Yes" if a confidence interval appeared in the article's main text, tables, or figures
"No" otherwise
"Yes" if a p-value or significance test appeared in the article's main text, tables, or figures
"No" otherwise
"Yes" if asterisks were used to represent p-value ranges
"No" otherwise
Hayat, M. and T. Knapp (2017). Randomness and inference in medical and public health research. Journal of the Georgia Public Health Association 7 (1), 7–11.
Lohr (2021), Sampling: Design and Analysis, 3rd Edition. Boca Raton, FL: CRC Press.
Lu and Lohr (2021), R Companion for Sampling: Design and Analysis, 3rd Edition, 1st Edition. Boca Raton, FL: CRC Press.
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