More formal tests are available but they are unlikely to be good for testing changes between days.<ref>https://psychology.stackexchange.com/questions/15/public-domain-scientific-intelligence-test-available-for-use-in-research</ref><ref>https://psychology.stackexchange.com/questions/10453/computer-based-cognitive-tests?rq=1</ref> | More formal tests are available but they are unlikely to be good for testing changes between days.<ref>https://psychology.stackexchange.com/questions/15/public-domain-scientific-intelligence-test-available-for-use-in-research</ref><ref>https://psychology.stackexchange.com/questions/10453/computer-based-cognitive-tests?rq=1</ref> |