Grade K is a preinstructional test in reading and mathematics. Grade 1

includes word analysis, vocabulary, reading comprehension, language

mechanics and expression, math computation, math concepts and application, science,

and social studies.

Grades 2 and 3 are the same plus spelling.

Grades 4 through 12 drop word analysis and add study skills.

The CAT requires little parental involvement beyond general  directions for grades 4 through 12. Each level has identical instructions so several children at different grade levels may take the test together.