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Please cite the article reporting these data and analyses (*Accepted_Manuscript_PBR*) as: Ulicheva, A., Coltheart, M., Grosseck, O., & Rastle, K. (2021). Are people consistent when reading nonwords aloud on different occasions? *Psychonomic Bulletin & Review*. DOI 10.3758/s13423-021-01925-w. ========================================== *Multi_Session_DMDX_06.11.19.rtf* is the DMDX script used for stimuli presentation and response recording **Folder "Data & Analysis"** *Megastudy_Analyses...R*: Analysis script *Megastudy_Analyses_Rmd.html*: R Markdown file that corresponds to the analysis script *Analyses_Data...rda*: .rda file that includes all supporting files to run the analyses *Multi_Session_data.txt*: Responses that each participant gave to 50 nonwords across five sessions in the .txt format *Participant_Characteristics.txt*: Spelling and vocabulary scores for each participant (the measures are described in detail in the *Megastudy_Analyses...R* script and in the paper *Item_Entropy.txt*: Grapheme entropy values for each nonword. For the calculations of these values, see the folder *"Item_Entropy_Calculations"*. For the description of the variables, see the *Megastudy_Analyses...R* script and the paper *CELEX IPA phoneme mapping*: .pdf file that reproduces two tables (Table 3 and Table 4) from the English Lexicon User Guide (CELEX; Baayen et al., 1995). These tables specify the mapping between IPA characters (column "IPA") and ASCII characters that are used for coding phonemic transcriptions in this project (column "DISC") **Folder "Item_Entropy_Calculations"** *Item_Entropy_Calculations...R*: R script for calculating the entropy of nonwords *Item_Entropy_Calculations...rda*: .rda file that includes supporting files for the corresponding R script *Process_DRC_Ourput.R*: R function called by the *Item_Entropy_Calculations...R* script. This function enables the parsing of syllables into graphemes
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