In 1998, by Dr. Lawrence Rudner, a professor at the ERIC Clearinghouse, which is part of the University of Maryland, surveyed over 20,000 homeschooled students for his study, titled Home Schooling Works. In his study he discovered that homeschoolers (on average) scored about 30 percentile points higher than the national average on standardized achievement tests.
Since Rudner’s research was conducted over a decade ago, HSLDA commissioned Dr. Brian Ray, an internationally recognized scholar and president of the non-profit National Home Education Research Institute (NHERI), to collect data for the 2007–08 academic year for a new study. This new study would build upon 25 years of homeschool academic scholarship conducted by Ray himself, Rudner, and many others.
The Progress Report 2009: Homeschool Academic Achievement and Demographics included 11,739 homeschooled students from all 50 states who took three well-known tests (from 15 independent services)—California Achievement Test, Iowa Tests of Basic Skills, and Stanford Achievement Test for the 2007–2008 academic year. To it’s credit, the Progress Report is the most comprehensive homeschool academic study ever completed to date.
The study showed note-worthy advances in homeschool academic achievement.
Additionally, the so-called issues, such as student gender, parents’ education level, and family income, had little bearing on the results of kiddos being homeschooled.
|National Average Percentile Scores
a. Core is a combination of Reading, Language, and Math.
b. Composite is a combination of all subtests that the student took on the test.
Only a slight difference between boys and girl on core scores:
Household income had almost no impact:
$34,999 or less—85th percentile
$70,000 or more—89th percentile
Though the parent’s education level saw a difference, it still remains that the homeschooled children of non-college educated parents scored well above the national average.
Neither parent has a college degree—83rd percentile
One parent has a college degree—86th percentile
Both parents have a college degree—90th percentile
A certified parent did not matter:
Certified (i.e., either parent ever certified)—87th percentile
Not certified (i.e., neither parent ever certified)—88th percentile
Amount of money parents spend on home education made little difference:
Spent $600 or more on the student—89th percentile
Spent under $600 on the student—86th percentile
Government regulation also didn’t change results:
Low state regulation—87th percentile
Medium state regulation—88th percentile
High state regulation—87th percentile
So… how do you like them apples?