Drawing from 15 independent testing services, the Progress Report 2009: Homeschool Academic Achievement and Demographics included 11,739 homeschooled students from all 50 states who took three well-known tests—California Achievement Test, Iowa Tests of Basic Skills, and Stanford Achievement Test for the 2007–08 academic year. The Progress Report is the most comprehensive homeschool academic study ever completed.
The linked article reports on the raw scores of homeschooled students vs public school students.
And for the homeschooled students, it also analyzes how certain factors affect the scores:
- household income
- parent’s education level
- parental teaching certification
- parental spending on education
- state government regulation
Please click through and get ready to be impressed!