Standardized tests are graded on a 4 level scale - 1 being the lowest and 4 being the highest. Students take four different types of tests in different grades throughout their K-12 education.
Reading and Math: 3rd, 4th, 5th, 6th, 7th, 8th, and 10th grade.
Science: 5th, 8th, and 10th grade.
Writing: 4th, 7th, and 10th grade.
This visualization shows the average scores in each subject for all schools in Seattle.