The 2010 Stanford-10 Achievement Test Scores are in and JCA is proud of the outstanding performance.
The tests were a complete battery testing- Reading, Math, Language, Spelling, Study Skills, Science, Social Science, Using Information, Thinking Skills. The rankings of the School are as follows:
| Grade One – 2.1 | Grade Four – 6.7 | Grade Seven – 8.5 |
| Grade Two – 3.6 | Grade Five – 7.8 | Grade Eight – 10.1 |
| Grade Three – 5.9 | Grade Six – 8.4 | Grade Nine – 12.2 |
* Note: Students take the test in the seventh month of the school year. Therefore, the score should reflect the grade level followed by point seven. Example - the average sixth grade student should be 6.7. Any score “on-level” or above is indicative of positive achievement. PHS means Post High School. Additionally, all students in grades 1st through 9th take the Otis-Lennon School Ability Test to give teachers a level of aptitude for each student