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The author is silly. Studies have been conducted to account for selection bias. Because, by law, students have to be randomly selected to get into charter schoo

by xname 12y ago

The author is silly. Studies have been conducted to account for selection bias. Because, by law, students have to be randomly selected to get into charter schools with lotteries, it is not hard to control for the selective effects. Check this: http://ies.ed.gov/ncee/pubs/20104029/ http://ies.ed.gov/ncee/pubs/20104029/ and this http://seii.mit.edu/wp-content/uploads/2013/10/Charter-School-Demand-and-Effectiveness.pdf http://seii.mit.edu/wp-content/uploads/2013/10/Charter-Schoo... Also, I don't understand why so many leftists hate charter schools so much. First, charter schools are public schools, not private schools. Second, charter schools are created to help the poor, not the rich. What's wrong with those leftists? I just can't understand. Do you really love teachers union so much that poor kids mean nothing to you?

japhyr 12y ago
If you randomly select students for enrollment through a lottery, but then weed out difficult students, you've introduced a selection bias for graduation. This is not a very good approach to "helping the poor".
- jaynos 12y ago
  Also, the lottery is used to choose from those that apply (not all students in a district). Students with parents that are more involved are the ones that apply for the lottery.
  - jack-r-abbit 12y ago
    You say that like it is a bad thing. But that is exactly how a lottery works. If you don't have a Powerball ticket, you can't sit at home and watch the drawing on TV and then complain you didn't win. Parents should be involved in the education of their children. If they take the (tiny, tiny) extra effort to fill out the application to a charter school in addition to enrolling in their designated neighborhood school then those are the ones that have a chance to win. You can't blame the school for the parents not involved enough to make an effort. (and really... the effort is not that great)
    - pdabbadabba 12y ago
      It's certainly not a bad thing, generally speaking. But the point, I think, is that it is a bad thing for the purposes of using student performance to evaluate the educational quality of the school. Students with involved parents outperform the children of parents who don't care.
Joky 12y ago
"charter schools are created to help the poor, not the rich" This is in theory, many charter schools are not following this principle, see for example: http://dianeravitch.net/2013/01/14/do-affluent-white-neighborhoods-need-charter-schools/ http://dianeravitch.net/2013/01/14/do-affluent-white-neighbo... http://www.bloomberg.com/news/2011-11-15/taxpayers-billed-for-millionaires-kids-at-charter-school.html http://www.bloomberg.com/news/2011-11-15/taxpayers-billed-fo...
depingus 12y ago
>First, charter schools are public schools, not private schools. Charter schools are funded with public money, but they are run (and often owned) by for-profit management companies. http://www.miamiherald.com/news/special-reports/cashing-in-on-kids/article1939199.html http://www.miamiherald.com/news/special-reports/cashing-in-o... Many people see them as just another way to get public money in the hands of a few private companies.
- mattmcknight 12y ago
  public means open to the public for free.

by xname 12y ago

japhyr 12y ago

If you randomly select students for enrollment through a lottery, but then weed out difficult students, you've introduced a selection bias for graduation. This is not a very good approach to "helping the poor".

jaynos 12y ago
Also, the lottery is used to choose from those that apply (not all students in a district). Students with parents that are more involved are the ones that apply for the lottery.
- jack-r-abbit 12y ago
  You say that like it is a bad thing. But that is exactly how a lottery works. If you don't have a Powerball ticket, you can't sit at home and watch the drawing on TV and then complain you didn't win. Parents should be involved in the education of their children. If they take the (tiny, tiny) extra effort to fill out the application to a charter school in addition to enrolling in their designated neighborhood school then those are the ones that have a chance to win. You can't blame the school for the parents not involved enough to make an effort. (and really... the effort is not that great)
  - pdabbadabba 12y ago
    It's certainly not a bad thing, generally speaking. But the point, I think, is that it is a bad thing for the purposes of using student performance to evaluate the educational quality of the school. Students with involved parents outperform the children of parents who don't care.

Joky 12y ago

"charter schools are created to help the poor, not the rich" This is in theory, many charter schools are not following this principle, see for example: http://dianeravitch.net/2013/01/14/do-affluent-white-neighborhoods-need-charter-schools/ http://dianeravitch.net/2013/01/14/do-affluent-white-neighbo... http://www.bloomberg.com/news/2011-11-15/taxpayers-billed-for-millionaires-kids-at-charter-school.html http://www.bloomberg.com/news/2011-11-15/taxpayers-billed-fo...

depingus 12y ago

>First, charter schools are public schools, not private schools. Charter schools are funded with public money, but they are run (and often owned) by for-profit management companies. http://www.miamiherald.com/news/special-reports/cashing-in-on-kids/article1939199.html http://www.miamiherald.com/news/special-reports/cashing-in-o... Many people see them as just another way to get public money in the hands of a few private companies.

mattmcknight 12y ago
public means open to the public for free.