Assumption School participates in the Archdiocesan Junior High Academic Decathlon. This is a competition for students in grades 6-8. They compete against over 100 schools from within the Archdiocese of Los Angeles. There are two events. Two are collaborative team efforts – a logic quiz with 20 rigorous thinking problems, and a super-quiz with 50 multiple choice questions on five broad academic themes. The remaining eight events test individual knowledge of religion, English, literature, science, math, current events, art and music. Awards are given for individual and team performance, and the winning team from each geographic diocese competes in a state championship.