Talk:Cognitive Testing
potential sources
autumn.health passive mood tracking has no references likely semantic analysis. https://www.turing.ac.uk/research/interest-groups/data-science-mental-health
https://forum.quantifiedself.com/t/quantifying-cognitive-performance/2576/9 https://forum.quantifiedself.com/t/quantifying-cognitive-performance/2576
learning a todo page https://old.reddit.com/r/dataisbeautiful/comments/tja91p/oc_vocabulary_acquisition_in_spanish_through/