R Markdown Templates to Preregister Scientific Studies

Provides a collection of templates to author preregistration documents for scientific studies in PDF format.

prereg provides R Markdown templates that facilitates authoring preregistrations of scientific studies in PDF format. The templates are based on the Center for Open Science Preregistration Challenge and the AsPredicted.org questions. They are, thus, particularly suited to draft preregistration documents for studies these programs but can also be used for internal preregistrations.

If you experience any problems or have suggestions for improvements, please open an issue.

To use R Markdown and prereg you need the following software on your computer:

You can install the stable version of prereg from CRAN


or the development version from this GitHub repository (you may have to install the devtools package first).


Once you have installed the prereg you can select the templates when creating a new R Markdown file through the RStudio menus.

prereg produces a clean form-like document.

The template file contains comments that provide further details on how to fill in the form but are invisible in the final PDF document.

If you want to use prereg without RStudio you can use the rmarkdown::render function to create preregistration documents:

# Create new COS preregistration challenge R Markdown file
  , "cos_prereg"
  , package = "prereg"
  , create_dir = FALSE
  , edit = FALSE
# Render document

The templates for the preregistrations were developed by the Center for Open Science and AsPredicted.org, respectively. I thank both for their permission to use their material in this package.


prereg 0.2.0

  • New template based on AsPredicted.org questions. See ?aspredicted_prereg.

prereg 0.1.0

Initial release.

Reference manual

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0.3.0 by Frederik Aust, 6 months ago


Report a bug at https://github.com/crsh/prereg/issues

Browse source code at https://github.com/cran/prereg

Authors: Frederik Aust [aut, cre]

Documentation:   PDF Manual  

GPL-3 license

Imports rmarkdown

Suggests testthat

See at CRAN