A data frame containing for each extracted statistic:
SourceName of the file of which the statistic is extracted
StatisticCharacter indicating the statistic that is extracted
df1First degree of freedom
df2Second degree of freedom (if applicable)
Test.ComparisonReported comparison of the test statistic, when importing from pdf this will often not be converted properly
ValueReported value of the statistic
Reported.ComparisonReported comparison, when importing from pdf this might not be converted properly
Reported.P.ValueThe reported p-value, or NA if the reported value was NS
ComputedThe recomputed p-value
RawRaw string of the statistical reference that is extracted
ErrorThe computed p value is not congruent with the reported p value
DecisionErrorThe reported result is significant whereas the recomputed result is not, or vice versa.
OneTailLogical. Is it likely that the reported p value resulted from a correction for one-sided testing?
OneTailedInTxtLogical. Does the text contain the string "sided", "tailed", and/or "directional"?
CopyPasteLogical. Does the exact string of the extracted raw results occur anywhere else in the article?