MST vs Triple P

A side-by-side comparison of recorded mechanisms, evidence review status, related condition topics, and philosophical roots.

By Expert review not yet recorded Updated

At a glance

Source checks, condition-specific assessments and expert review are separate steps. Each assessment applies only to its stated population and use. Topic links do not establish comparative effectiveness.

MST

Tradition
Family Systems
Founder
Scott Henggeler (1998)
Review status
1 condition assessment available
Official sources
Guidelines and official sources (2)

1 clinical guideline check · 1 professional reference check

Read the recommendation and its scope. A source may discuss an approach without recommending it.

  • Antisocial behaviour and conduct disorders in children and young people (CG158)

    NICE · 2013; current recommendation page retrieved 2026-09-06 · Clinical guideline · 1.5.13–1.5.14

    Recommendation for the stated population

    NICE explicitly names MST as an example of multimodal intervention to offer.

    Scope: Ages 11–17 with conduct disorder

    Source checked

  • Screening and treatment of substance use disorders among adolescents

    SAMHSA · 2021 advisory; PEP20-06-04-008 · Professional reference · Treatment table, page 7

    Discussed in the source

    SAMHSA describes MST in a treatment advisory; this is not a generic all-childhood-disorders CPG grade.

    Scope: Adolescents with severe SUD and delinquent or violent behaviour

    Source checked

Focus
Systemic + Behavioral
Format
Family + Community
Duration
Short (3-5 months)

Condition-specific assessments

Each conclusion applies to the population and use described. These source-based assessments do not certify the full entry or replace expert clinical review.

Child & Adolescent Behavioral Problems

Population and scope: Children and young people aged 11–17 with conduct disorder, receiving a manualized multimodal programme involving parents or carers and the young person’s wider systems.

Guideline recommendation

NICE CG158 1.5.13 offers multimodal interventions and explicitly names multisystemic therapy as an example. Recommendation 1.5.14 specifies a social-learning approach across individual, family, school, justice and community settings, delivered by specially trained case managers using an evaluated manual. This is a recommendation for conduct disorder in the stated age group, not for every childhood behavioral problem, ADHD alone, generic family therapy or all MST adaptations.

Source assessment dated

Triple P

Tradition
Behavioral
Founder
Matt Sanders (1999)
Review status
1 source check available
Official sources
Guidelines and official sources (1)

1 clinical guideline check

Read the recommendation and its scope. A source may discuss an approach without recommending it.

  • Antisocial behaviour and conduct disorders in children and young people (CG158)

    NICE · 2013; current recommendation page retrieved 2026-09-06 · Clinical guideline · Recommendations 1.5.1–1.5.4

    Discussed in the source

    NICE recommends qualifying parent-training programs. Its recommendation text does not name Triple P; referencing a program in an evidence review is a different claim.

    Scope: Parents of children aged 3–11 with or at high risk of oppositional defiant or conduct disorder.

    Source checked

Focus
Skill + Psychoed
Format
Individual + Group + Community
Duration
Variable by level

How they work

MST

Core mechanism: Intensive home-based intervention targets multiple ecological systems (family, peer, school) maintaining antisocial behavior

Ontology: Antisocial behavior maintained by factors across ecological systems, not just the individual youth

Triple P

Core mechanism: Graduated parent skill-building at appropriate intensity level; minimal sufficiency principle uses least intervention necessary

Ontology: Child behavior problems primarily maintained by parenting patterns and family environment; population-level prevention possible

Related condition topics

These editorial cross-references organize reading. A shared link does not mean both approaches are effective, recommended, or interchangeable for that condition.

1 shared · 1 MST-only · 0 Triple P-only

Linked to both entries

Child & Adolescent Behavioral Problems

Linked only in the MST entry

Substance Use & Addictions

What each assumes — and misses

MST

Philosophical roots: Bronfenbrenner (ecological systems theory); Haley (strategic family therapy); Minuchin (structural family therapy); pragmatism (what works in context)

Blind spots: Extremely resource-intensive; requires 24/7 therapist availability; limited outside juvenile justice populations

Therapeutic voice: Who is actually around at three o'clock when he gets out of school? We build the plan around people who are really there. If it doesn't hold this week, that's mine to fix, not yours.

Triple P

Philosophical roots: Patterson (coercion theory); Bandura (social learning, self-efficacy); Sanders (population approach, minimal sufficiency, parental self-regulation); Bronfenbrenner (ecological systems); the public health model of prevention

Blind spots: Population-level approach may miss individual complexity; culturally normed parenting standards may not translate universally; the trial literature is dominated by teams affiliated with the program's developers, and independent evaluations have reported weaker effects than developer-led ones

Therapeutic voice: When he acts out, get down to his level, make eye contact, and give one clear instruction.

Choosing between them

MST (Family Systems) and Triple P (Behavioral) come from different traditions, which means they assume different things about what a person is, what causes suffering, and what the therapeutic relationship is for. The choice between them is often less about "which works better" and more about which set of assumptions fits the client and the therapist.

For deeper coverage: see the full MST and Triple P pages, or use the interactive comparison tool to add more modalities to this comparison.