Table 1.
Biology top 10 journals by Impact Factor, 2013.
Table 2.
Chemistry top 10 journals by Impact Factor, 2013.
Table 3.
Mathematics top 10 journals by Impact Factor, 2013.
Table 4.
Physics top 10 journals by Impact Factor, 2013.
Table 5.
Biology article counts, 2014.
Table 6.
Chemistry article counts, 2014.
Table 7.
Mathematics article counts, 2014.
Table 8.
Physics article counts, 2014.
Table 9.
Sample proportions/estimates of population proportions (n = 50 for each discipline, N = 200 overall).
Table 10.
Sample proportions for additional variables.
Table 11.
Estimates of variance, standard error, and confidence intervals.
Fig 1.
Proportion of articles using data.
This graph shows the proportion of articles by discipline that make some use of data as part of the research, along with the confidence interval of this estimate for the general population, based on the sample size. See Tables 9 and 11 for numeric values.
Fig 2.
Proportion of articles with only reused data.
This graph shows the proportion of articles with reused data, that is data taken from other studies and not original to the article in question, along with associated confidence intervals. See Tables 9 and 11 for numeric values.
Fig 3.
Proportion of articles with original data.
This graph shows the proportion of articles by discipline with original data generated by the research described in the article, along with associated confidence intervals. See Tables 9 and 11 for numeric values.
Fig 4.
Proportion of articles that share data.
This graph shows the proportion of all articles by discipline that share data, making it available to the reader via any indicated mechanism, along with associated confidence intervals. See Tables 9 and 11 for numeric values.
Fig 5.
Proportion of original data articles that share data.
This graph shows the proportion of articles by discipline that share data, among articles with original research data, along with associated confidence intervals. See Tables 9 and 11 for numeric values.