This article is a validation study of two national large-scale tests that measure the language proficiency of 11/12 year-old English learners in Norway and Slovenia. Following the example of Alderson and Banerjee (2008), the authors of the article have employed the EALTA guidelines for good practice to validate the tests, and to formulate major recommendations for improvement of both assessment instruments, where feasible (Alderson & Banerjee, 2008). The results of the validation study show that both national tests in English seem to fulfil most of the EALTA guidelines for good practice, although a few issues related to the test construct and test design procedures need to be re-assessed, and some changes may be required.