ScienceRep: a repository for Open Science
These files accompany the article "The influence of two different invitation letters on visiting a Chlamydia screening website " by ten Hoor, Hoebe, van Bergen, Ruiter & Kok.

Note that the files are in a compressed archive of the open source 7-zip format. You can download a client for your platform (Windows, Apple or Linux) at There is also a portable version of 7-zip that you can use if you are on a Windows PC without the rights to install software; see

To replicate the analyses, extract the files and make sure that you change the directory used in the Syntax-file.

These files are licensed under a CC BY-NC-SA 3.0 license. When using this data, please cite the article and link to this page (