In this fetid cesspool of Leftists,
Ah, is that the sound of the Christian civility and love you proclaim is lacking among us atheists?
First, you cannot POSSIBLY refute all I presented, because I presented facts. Unassailable facts. Educrats have dumbed down SAT tests to hide their miserable failure.
REFUTE THAT, with facts and graphs, not simply your declaration. I could go on at considerable length, but like all the other Leftists, you would simply create new objections from out of.....
I did refute all of your false assertions and misrepresentations with real facts and valid graphs (and valid statistical reasoning that all your sources and posts lack), in the two prior posts that I linked from this one and that you blindly ignored.
Holding sampling method and other confounds constant, there is a strong positive correlation between the per pupil expenditures that come from local revenues and academic achievement.
Oh please, stop it. Is that why Washington, D.C. has one of the highest per pupil spending rates in the country, while students perform near the bottom there?
Yes, that is exactly why D.C.'s average is low and why your claim that D.C. "students perform near the bottom" is completely false and not at all a "fact". What is a fact is that the average score for the students that take the SAT in D.C. is near the bottom, but that is because DC requires that all high school seniors take the SAT, thus 91% take it which is the 4th highest % in the country. Most States have less than their top 50% take the SAT and 19 Statest have only their top 10% of students take it. If you cannot understand how that completely determines the per state average, then you are not capable of forming a rational view of the subject (or just about any subject). This is the 4th time I have had to explain this to you, so you clearly didn't bother to read my posts.
Is that why Obamas send their daughters to Sidwell Friends School?
Yes, the non-comparable non-random samples selected using different methods is precisely why private schools have an advantage over public.
Private schools differ from public in numerous ways, with the biggest being that public schools are more of a representative sample of the population and include most of the problem students (both behavioral and academic problems). Private schools are a highly selective non-representative sample of students with parents that chose to and can afford to pay for private school, and who have good enough grades and an absence of behavioral problems to allow them to be admitted into and not get kicked out of private schools, which often do so at the first sign of trouble. Problem students in private schools get kicked out into public schools, while problem students in public schools get kicked out into other public schools. In addition private schools still can and do use corporal punishment and often have strict dress codes, which can lower behavioral problems and distractions. Note that use of corporal punishments, dress codes, and simply kicking out and abandoning problem students (all qualities of private schools) are not incompatible with public school. So, the fact that public education is hampered by not doing these things is not an argument against public education in general and has zero to do with spending, except that private schools keep cost down by their ignoring of problem students.
Is that why the New York Teachers union Charter School performs at the 5th percentile, while Carl Icahn's four Charter Schools rank from 88th to 100th percentile?
Icahn schools are publicly funded schools that get $15,000 per pupil from public tax revenues, which they supplement with philanthropic donations. They achieve good results via unusually low student to teacher ratios, long school days and school years, and 1-on-1 tutoring for all students that score low on standardized tests. They also keep typical social distractions to a minimum via a small number of students at each school, only about 20 per grade level.. All of these things cost money. Like private schools, their students are a non-representative sub-sample of all students in the area. The kids whose parents have and take the time to research school options and apply to Icahn based on its record are the one's who get in. Parents also need to choose Icahn despite its long school day, which parents of kids with special needs or behavioral problems are much less likely to do.
Only about 5% of the students that enroll in Icahn require special Ed., whereas it is
about 18% for traditional public schools in the area and about 14% at other Charter schools in the area. IOW, Charter schools don't have to deal with the same level of costs or general learning disruptions incurred by special needs students, and Icahn deals with even much less of it than most other Charters, such as the teachers Union school you reference.
If I never respond again to your remarks,
You didn't respond to my posts even once yet. You ignored the links to my prior 2 posts where I laid out in scientific detail why your every "fact" and claim is false, and why your sources providing these graphs for you are too scientifically and statistically illiterate to possibly provide you with any valid information.
Your reply is just another re-vomitting of the same meaningless and irrelevant "facts" that I already refuted in detail.
I predict that you will continue to ignore the facts I and others have presented, as you've done in every post in this and all your other threads. I only bother to post more of them in here for the potential benefit to others in the thread who are interested in rational understanding of the issue and gaining a better understanding about the fatal flaws in the kind of abused stats you and your ideological brethren regurgitate.