http://www.iris-database.org/
IRIS is a free, searchable, up- and downloadable collection of instruments, materials, and stimuli that are used to elicit data for research into second and foreign languages. This research includes investigations into the effectiveness of different types of experimental treatments and instructional techniques; linguistic development and how languages are learnt; the contexts in which second languages are used and learnt; and stakeholders' (learners', teachers', policy-makers') opinions about language use and how these impact teaching and learning.
