Since its launch in the 1940s, there have been a number of language adaptations and revisions to the DAT. The most recent versions, however, are over ten years old and there is inconsistency in terms of test length and content in various language versions. This new adaptation gives a consistent test that can be used across different languages.
DAT is being increasingly used as an online screener of cognitive abilities in a recruitment context. The current versions are all fixed test forms, meaning that each test-taker receives the same set of items. Over time, the same few items have become overexposed.
With DAT NG, items are drawn from a large bank, ensuring that that the chances of two test-takers receiving the same set of items is minimal, but the tests are nevertheless equivalent in terms of difficulty. Item-banking reduces the chances of
items being over-exposed or people sharing items with others.
DAT NG has a more sophisticated scoring system than previous versions. The test is scored using computer adaptive testing (CAT). CAT works by tailoring the difficulty of items to a test-taker, meaning that those who answer the items correctly will receive more difficult ones. This can offer a more positive test-taker experience.
DAT NG is suitable for online completion in both an unsupervised (unproctored) and supervised environment, such as assessment or development centres.