Establish your child's benchmark score by consulting with the classroom teacher who administered the test.
Review the grade-level standards specific to your child's school or use the general scale for each grade level. Kindergarten teachers usually expect their students to master levels A-4, first-graders to test at levels 6-18, second-graders at 18-28, third-graders at 20-28, and fourth- and fifth-graders at 40-50.
Divide the score range by the number of testing periods to get a rough estimate of where your child should score at different points during the school year. For example, if your child is in the first grade and takes the test four times during the year, subtract 6 from 18 and divide that result, 12, by 4 to obtain 3. For an on-level rating, she should need a score of 6 to 9 on the initial test, 10 to 12 on the second, 13-15 on the third and 16 or higher on the last.