In 1968, British-American psychologist Alan Baddeley published a 2-page paper titled "A 3 min reasoning test based on grammatical transformation". The test was used to detect the effects of nitrogen narcosis or "rapture of the deep" in SCUBA divers, not as an I.Q. test. But, as tests do, it got used for other purposes. It has since been adapted and variants - including non-English and graphical - are described in the literature.
A 3-minute test can't be an excellent I.Q. test for all purposes. However, its brevity makes it both a good screening tool* and also an icebreaker - it can help get people used to taking an I.Q. test, not feeling threatened or like it is a big deal. They may enjoy this test, be stimulated by it, and be amenable to and interested in taking another.
This PDF document, the OQRT or Open Quick Reasoning Test, contains 4 variants. None are based on Baddeley's original test, nor on any of the other variants mentioned in the literature, since these were unavailable to the author of the OQRT and which the author has never seen. The various academic research papers describing the variants, if you read them carefully and in combination, describe the concepts involved, from which you can figure out how to put together a "Baddeley Variant". After you look through the OQRT you can probably figure out how to develop one of your own - which you are licensed to do according to the terms of the Creative Commons Attribution-ShareAlike 4.0 International license.
*below I.Q. 80, the test correlates well with I.Q.
Resources:
Individual components
| File | Size | File | Size | File | Size | File | Size |
|---|---|---|---|---|---|---|---|
| Digits.pdf | 232,866 | Gram.pdf | 32,936 | LikeDislike.pdf | 32,274 | Persian.pdf | 48,713 |
| Digits.xlsx | 32,066 | Gram.xlsx | 29,271 | LikeDislike.xlsx | 34,297 | Persian.xlsx | 91,646 |
Research papers
Research papers linked to above are (presumably) copyright their respective authors, publishers, institutions, et cetera. Other than those:
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