Case-Sensitive Letter and Bigram Frequency Counts from Large-Scale English Corpora. Jones, M. N. & Mewhort, D. J. K. 36(3):388–396. Paper doi abstract bibtex We tabulated upper- and lowercase letter frequency using several large-scale English corpora (∼183 million words in total). The results indicate that the relative frequencies for upper- and lowercase letters are not equivalent. We report a letter-naming experiment in which uppercase frequency predicted response time to uppercase letters better than did lowercase frequency. Tables of case-sensitive letter and bigram frequency are provided, including common nonalphabetic characters. Because subjects are sensitive to frequency relationships among letters, we recommend that experimenters use case-sensitive counts when constructing stimuli from letters.
@article{jonesCasesensitiveLetterBigram2004,
title = {Case-Sensitive Letter and Bigram Frequency Counts from Large-Scale {{English}} Corpora},
author = {Jones, Michael N. and Mewhort, D. J. K.},
date = {2004},
journaltitle = {Behavior Research Methods, Instruments, \& Computers},
shortjournal = {Behavior Research Methods, Instruments, \& Computers},
volume = {36},
pages = {388--396},
issn = {1532-5970},
doi = {10.3758/BF03195586},
url = {https://doi.org/10.3758/BF03195586},
urldate = {2020-05-10},
abstract = {We tabulated upper- and lowercase letter frequency using several large-scale English corpora (∼183 million words in total). The results indicate that the relative frequencies for upper- and lowercase letters are not equivalent. We report a letter-naming experiment in which uppercase frequency predicted response time to uppercase letters better than did lowercase frequency. Tables of case-sensitive letter and bigram frequency are provided, including common nonalphabetic characters. Because subjects are sensitive to frequency relationships among letters, we recommend that experimenters use case-sensitive counts when constructing stimuli from letters.},
keywords = {~INRMM-MiD:z-XJL39NVM,frequency,languages,statistics},
langid = {english},
number = {3}
}
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