For services call (855) 362-8470


Multi-Systemic Therapy™ (MST)
Multi-Systemic Therapy Problem Sexual Behavior™ (MST-PSB)

Multi-Systemic Therapy™ & Multi-Systemic Therapy-Problem 
Sexual Behavior™

Community Based Support for Problem Behavior

Multi-Systemic Therapy™ (MST) is an evidence-based, intensive family and community-based treatment model for youth who exhibit serious behavioral problems, including delinquency, substance abuse, and other difficult-to-treat behaviors.

The MST model is a flexible and adaptive treatment model based on the premise that the best way to address these problems is to work with youth and their families in the various systems that impact their lives, including family, peers, school, and community. The focus is on identifying the key factors that are contributing to the youth’s problem behaviors, and working with the family and other systems to address those factors in a coordinated and collaborative manner. 

Multi-Systemic Therapy for Problem Sexual Behaviors™ (MST-PSB) is a specialized variant of Multi-Systemic Therapy™ (MST) that is designed to help youth who exhibit sexually deviant behaviors. MST-PSB is an evidence-based, family and community-based treatment model that is grounded in the same principles as MST, but is tailored specifically to address the unique needs and challenges of youth who engage in problematic sexual behavior.

Continuous Goal Setting

  • Provides stability for adolescents and family
  • Mimics community and school expectations
  • Reduces criminal activity and other antisocial behaviors
  • Prevents drug use and truancy
  • Decreases negative influence on siblings and other family members
  • Successful completion of the program reduces admission to residential or other behavioral programs

Improve behavioral challenges with your child or teen

Multi-Systemic Therapy™ (MST) and Multi-Systemic Therapy for Problem Sexual Behavior™ (MST-PSB) are highly structured and collaborative programs designed to improve behavioral challenges with your child or teen by collaborating with your family and using community-based activities.

Each MST and MST-PSB team at Alexander Youth Network consists of three therapists and a supervisor who work together with children and teenagers in the community several hours a week. The specific interventions provided through MST or MST-PSB may include individual and family therapy, case management, crisis intervention, parent training, and support for school and community involvement. By working with a youth’s support system, the MST or MST-PSB therapist can help identify the root causes of their problematic behaviors in their environment to develop an action plan for sustainable change. 


Collaborative and personalized program to provide children and families with skill building and resources to reduce the likelihood of problematic behaviors and criminal activity.


12-18 years old

Length of Stay

The average length of treatment is about 3 – 5 months.


For questions about the MST and MST-PSB programs, please contact the Intake Department at (855) 362-8470 or email

Multi-Systemic Therapy does not require pre-authorization from Managed Care Organizations (MCO), so there are no delays in starting treatment.

MST- PSB providers at Alexander Youth Network are prepared to serve youth who will now be in the Juvenile Justice System due to Raise the Age legislation.


Brunswick, Burke, Cabarrus, Catawba, Cleveland, Columbus, Gaston, Iredell, Johnston, Lincoln, Mecklenburg, New Hanover, Pender, Stanly, Union

Statistics that show the Impact of MST/MST-PSB Services

More than 200,000 families have been positively impacted by MST:

  • 75% Fewer Violent Felony Arrests (22 years)
  • 54% Fewer Out-Of-Home Placements
  • 86% Of Youth Live at Home (over 16 months)
  • $23.59 Return for dollar spent on MST

What’s more, there are better outcomes for the entire family for youth who receive MST services:

  • 40% Reduction in Overall Sibling Arrest Rates
  • 55% Reduction in Sibling Felony Arrest Rates
  • 94% Fewer Caregiver Felonies


MST-PSB uniquely addresses the multiple determinants of behavioral issues connecting community, families, and peers.

  • 94% of youth were not rearrested
  • 92% of youth were attending school or working
  • 92% of youth were living at home

Help us support our children and their families with a gift to Alexander.