1. Diagnosis of type 1 diabetes mellitus

2. Receiving care in the pediatric clinic at the Barbara Davis Center (BDC)

3. Age 15-20 at study enrollment

4. English literate and English speaking

5. Ability to complete the required surveys

6. Have a personal cell phone with service compatible with EZTexting Platform

7. Able to provide informed assent or consent (if 18 years of age or older) and parental informed consent (if needed).

Adolescent Self-Care and Knowledge Education in Diabetes--Improved by Texting