Frequently Asked Questions
EF Education First Research

The EF-Cambridge Open Language Database (EFCAMDAT) is an electronic resource containing samples of written language production by thousands of adult learners of English as a second language, world-wide.

More information about EFCAMDAT is provided in
EFCAMDAT user manual

how can I use
this website?

Please have a quick look at the EFCAMDAT user manual, which contains detailed instructions for your convinience.

I made additional annotations
of the learner texts...

Please let us know about them! We try to keep an overview of derived work, and we offer to host it on this website. Please contact D. Alexopoulou or C. Balhana.