The senior class at Success Academy’s Liberal Arts High School has 17 members.

When they started in kindergarten, there were 73 students.

By the end of eighth grade, there were 32 students.

Four years later, there were 17, all of whom were admitted to college.

Gary Rubinstein wrote recently that we can’t be sure of the real attrition rate because some of the original 73 might have been excluded and replaced; unlike real public schools, Success Academy does not admit new students after third grade.

So impressed was SA’s board chairman, billionaire Dan Loeb, by the “success” of the high school with 17 graduating seniors that he gave Eva Moskowitz $15 million to add more high schools.

But one of our regular readers, who signs in as New York City Public School Parent, says the media should look to the public schools to find schools that consistently achieve success for…