During each summer's national convention, the student delegate assembly meets to discuss issues of concern to member schools attending the convention. Each school selects a representative to attend the assembly meetings. This delegate casts votes on issues brought up and makes motions on issues they wish discussed.

The assembly also hears recommendations for the Sister Scholastica Most Committed Sponsor Award and selects the teacher who will receive the award.

The assembly elects student officers to run the meetings at the next summer's national convention. Mu Alpha Theta pays convention registration fees for these officers. In addition, the officers help the convention hosts of the following summer's convention run speaker sessions, award ceremonies, and help wherever they are needed.

2019-2020 Student Delegate Officers

• President Amanda Thomsen Region II Fayetteville High School Fayetteville, AR
• Vice President Kira Nagoshi Region IV Buchholz High School Gainesville, FL
• Secretary/Treasurer Victoria Greene Region I Coral Academy of Science Las Vegas Las Vegas, NV
• Parliamentarian Aditya Bal Region III Farragut High School Knoxville, TN