Because as I have said about a dozen times now, nothing is ever all one thing or the other. The proper focus of policy, and the attendant public debate on it, is to try and ferret out what consequences can be efficiently “tweaked” by changes to policy/attitudes and which can not. The problem comes with the type of absolutest thinking evidenced here. It is very unlikely that any changes to standardized testing/outside scholarships/mentoring programs/hiring targets will provide an acceptable level of parity for women in engineering jobs, particularly as one climbs the chain. Therefore, if you think in absolutes, nothing you do is ever enough, and more changes are always required. I would argue the same principle applies to the rate of change in men attending college. There are some factors you can adjust for, if we had the political will to do so, but it is unlikely that whatever steps are taken, whether that is going back to recess or returning due process to college disciplinary tribunals, will ever achieve a similar level of parity. Personally, I am ok with both outcomes, because my experience and my mind tell me that in the main, men and women are motivated differently. I strongly object to the idea that we need to change one but ignore the other. Sauce for the goose as they say.
On a slightly less high minded note, it is also a lot of fun watching people twist themselves into rhetorical pretzels to try and argue that it is both night and day when looking out the same window.
As far as studies about how teachers treat boys and girls, there are several now which document that girls receive higher grades for generally equivalent work.
http://people.terry.uga.edu/cornwl/research/cmvp.genderdiffs.pdf
http://seii.mit.edu/wp-content/uploads/2016/11/SEII-Discussion-Paper-2016.07-Terrier.pdf
As a non educator, this is somewhat more meaningful to me than studies about whether teachers are doing enough to encourage girls, or if boys are being called on too much. Also, my common sense tells me that in a profession dominated by women, behaviors that women find lead to successful outcomes will be favored. This is the exact same thing I mentioned earlier when I said that the biggest source of “discrimination” I had seen in my years in practice is that the men who made hiring and promotion decisions tended to reward behavior that they believe led to their own success.
A big reason for this is because we no longer have shop classes in most schools.
Speaking of discipline in the schools, I went to a parish grade school and then a public high school that had a security wing (for the “problem” kids) and police in the halls. Were there tougher schools? Sure. But not many. Discipline in schools was absolutely different at that time (the 1970s to early 1980s). Kids didn’t get suspended for chewing a pop tart into the shape of a gun (although we did have regular police locker checks for real guns) or accused of harrassment for hugging their elementary school teacher. No one got suspended for getting into a fight unless a knife or a gun came out. When we were younger we even had recess! You could actually play games like dodge ball.
One other point that I think is never mentioned which had a significant impact on boys’ performance in school generally was the explosion of the use of ritalin. Weirdly, when you take away recess, and do not allow young boys any physical outlet, they get fidgety. Our system’s answer to this problem has been to drug them and sit them in the corner. Not awesome.