"Science and engineering" bachelors degrees have been about 50% male and 50% female since 2000, growing from about 400,000 degrees in 2000 to 589,000 in 2012.
From 2000 to 2004, women's share of computer science degrees were between 25% and 28%. From 2007 to 2012, they stabilized at about 18%.
Now, the question is, did men preferentially enter computer science, or did women preferentially leave? Hint: the latter.
In 2004-2008, degrees granted to men decreased by 6%, 10%, 9% and 8%. Degrees granted to women decreased by 20%, 18%, 20%, and 13%. (The other big drop in degrees, from 1986 to 1993-6, shows the same pattern and is when degrees granted to women went from 35-37% of the total to 27%.)
According to the National Assessment of Educational Progress (NAEP) mathematics scale score, the difference between boys and girls up to grade 12 has been stable for years and doesn't really amount to a hill of beans. Same with science.
It's also worth remembering that the problem continues in the workforce; there's fewer women reaching senior roles, fewer taking EM positions, etc. Those steps are entirely under the control of employers - women drop out of tech faster than men even when they get jobs in it.
https://nsf.gov/nsb/sei/edTool/data/college-14.html
"Science and engineering" bachelors degrees have been about 50% male and 50% female since 2000, growing from about 400,000 degrees in 2000 to 589,000 in 2012.
From 2000 to 2004, women's share of computer science degrees were between 25% and 28%. From 2007 to 2012, they stabilized at about 18%.
Now, the question is, did men preferentially enter computer science, or did women preferentially leave? Hint: the latter.
https://nces.ed.gov/programs/digest/d12/tables/dt12_349.asp
[Edit: more recent.] https://nces.ed.gov/programs/digest/d18/tables/dt18_325.35.a...
In 2004-2008, degrees granted to men decreased by 6%, 10%, 9% and 8%. Degrees granted to women decreased by 20%, 18%, 20%, and 13%. (The other big drop in degrees, from 1986 to 1993-6, shows the same pattern and is when degrees granted to women went from 35-37% of the total to 27%.)
Whence comes this pipeline difference?
https://nces.ed.gov/programs/digest/d18/tables/dt18_222.10.a...
According to the National Assessment of Educational Progress (NAEP) mathematics scale score, the difference between boys and girls up to grade 12 has been stable for years and doesn't really amount to a hill of beans. Same with science.
https://nces.ed.gov/programs/digest/d18/tables/dt18_224.70.a...
https://nces.ed.gov/programs/digest/d18/tables/dt18_224.74b....
https://nces.ed.gov/programs/digest/d18/tables/dt18_224.74a....
https://nces.ed.gov/programs/digest/d18/tables/dt18_224.73.a...
The Technology and Engineering Literacy scores for 8th graders don't have any difference to write home about.