In the past decade or so, there has been more research into the reasons for and the result of home schooling. A study referenced by Woodruff compared public school students' scores using the Iowa Tests of Basic Skills and the Tests of Achievement and Proficiency with those of home-schooled students. The median score for home-school students in the eighth grade was about the same as the median score for 12th-graders in public schools. The study ended in 1999 and was conducted by Lawrence Rudner, whose children are not home-schooled.
An article in the Missourian bemoaning the fact that Home schooling operates on 'honor system'. Even after providing evidence that homeschoolers for the most part had higher scores on the IOWA test then their public school counterparts.
Relatives sometimes call local school districts with suspicions of poor home schooling.
"Sometimes we have grandparents that will call being very concerned, knowing that their grandchildren are not being educated even though they know the parents are saying that the child is home-schooled," Barnett said. In cases like these, the district directs the caller to the state hot line.
I would hazard a guess that in a majority of these cases the grandparents either do not like the parent doing the homeschooling or are prejudiced against homeschooling, and that the parents in fact are doing a wonderful job homeschooling their children.