Arkansas law requires that each student aged 7 through 16 years in a home school program be tested annually using a nationally recognized standardized test chosen by the students' parents from a list of tests approved by the state. Achievement for home schooled and public schooled students in Arkansas was compared for grades 4, 7, and 10 using 6 subscales of the MAT-6. Responses of 428 home schooled and 89,314 public schooled students were used. Home schooled students scored higher than their counterparts in reading, mathematics, language, total basic battery, science, and social studies at grade 4 and grade 7. They also scored significantly above public school means for grade 10 in reading, mathematics, total basic battery, science, and social studies, but scored significantly lower in language. Three appendixes present detailed comparisons in three tables. (SLD)