This however doesn't matter to charter school advocates because at the end of the day they don't want the right answer they want their answer to be right.I get it though, the concept of charter schools is an attractive one but the thing is how we do things is a travesty that only benefits their owners and the politicians they donate to.
Note: I talked to one of the authors of the study and this is what the said, which by the way was nowhere in the Forbes article. The Florida part of the analysis was based on four cohorts of students who were enrolled in 8th grade in school years 1997/98-2000/01 (ie. students who began high school in years 1998/99-2001/02). The sample was limited to these years in order to allow us to track students through college and into the workforce. Thus the findings reflect the impact of charter high schools operating in the late 1990s/early 2000s. We did not determine whether or not those schools are still in operation. The quality of charter high schools in Florida could be different today. I hope this answers your question.