for people ages 13-19 (full criteria)
Healthy Volunteers
healthy people welcome
at Fresno, California
study started
estimated completion
Principal Investigator
by Mara J Decker, DrPH



This randomized control trial (RCT) will assess an innovative demonstration project to improve adolescent sexual and reproductive health among highly mobile and marginalized youth in Fresno County, California. The Digital Initiative for Youth intervention combines existing, in-person, group-based, comprehensive sexual health education with wraparound digital technologies. The technological component was designed by Youth+Tech+Health using a "youth-centered" design approach and the intervention is implemented by Fresno Economic Opportunities Commission (Fresno EOC). The University of California, San Francisco is the external evaluator. The RCT will assess health and behavioral outcomes at three time points (baseline, 4 months, 10 months).

Official Title

Personal Responsibility Education Program Innovative Strategies: Digital Initiative for Youth; An Innovative Youth-Centered Initiative to Improve the Sexual Health and Socio-Economic Well-Being of Youth in Fresno County, California


The Digital Initiative for Youth (DIY) is an innovative, youth-centered, digital intervention that aims to improve the health and well-being of adolescents ages 13-19 in Fresno County, California. In particular, it will address the needs of homeless and unstably housed youth, youth of color, sexual minority youth, and Native American youth using a trauma-informed approach and positive youth development framework. DIY combines existing, in-person, group-based, comprehensive sexual health education with an app designed in consultation with youth. DIY is built on three strategies: positive youth development, youth-centered design, and wraparound technologies. It will focus on four main areas: sexual health and contraceptive use, healthy relationships, educational and career development, and life skills. The intervention includes six hours of in-person education and an app that includes a resource locator, goal setting, text message reminders, and additional information and referrals. This study is funded through the Personal Responsibility Education Program Innovative Strategies (PREIS), which is administered by the Family and Youth Services Bureau, part of Health and Human Services, Fresno EOC is responsible for site and participant recruitment as well as the implementation of the intervention. Participants are randomized at the cohort (group) level. All control group participants will be invited to participate after completion of the long-term follow up period.


Reproductive Health Contraception Sexually Transmitted Diseases youth adolescent In the Know: sexual health education In the Know (ITK): sexual health education


You can join if…

Open to people ages 13-19

  • Speak/understand Spanish or English
  • Live within Fresno County, California at baseline (may move out afterward)
  • Age between 13-19
  • Have access to a smart phone or internet (does not need to own)

You CAN'T join if...

  • Do not live in Fresno County, California at baseline
  • Do not speak or understand Spanish or English
  • Severe mental health issues that prevent them from participating


  • Fresno Economic Opportunities Commission
    Fresno California 93701 United States

Lead Scientist at UCSF

  • Mara J Decker, DrPH
    Mara Decker is an Assistant Professor of Epidemiology and Biostatistics at the Philip R. Lee Institute for Health Policy Studies and the Bixby Center for Global Reproductive Health. She oversees a portfolio of applied research projects and evaluations focusing on sexual and reproductive health both domestically and globally.


in progress, not accepting new patients
Start Date
Completion Date
University of California, San Francisco
Study Type
Last Updated