Psychology Reader

How Should Psychological Treatment Change Across Childhood and Adolescence?

Developing capacities, shared goals and evidence across changing lives

Level
Introductory
Reading load
9 core readings in 5 units
Prerequisites
An interest in how young people develop and how psychological treatment is studied. No clinical training is assumed. The Psychotherapy foundation is useful preparation for distinguishing outcomes from mechanisms.
Last reviewed
September 2026

Introduction

A young person may arrive at treatment because someone else has named a difficulty, while seeking help for something different. Capacities, relationships, and responsibilities are still changing; home and school may reveal different concerns. Treatment therefore becomes a developmental and social question as well as a question of technique. Whose account is heard, and what would a useful change make possible?

This path asks what should change when treatment is designed for children and adolescents—and what evidence would justify the change. Begin with a developmental framework, then consider disagreements about difficulties and decisions. Three intervention examples shift attention between young children, caregivers and an adolescent school clinic. Two trials examine treatments whose components can be selected and combined according to the young person's needs, asking whether this flexibility improves outcomes in different service settings. The closing follow-up follows former trial participants toward adulthood.

The readings combine arguments with experiments and observational evidence. They are selected to teach distinctions: age versus developmental capacity, an informant’s report versus a complete account, participation versus benefit, and early improvement versus lasting recovery. They support understanding and evaluating research, not choosing treatment for a particular young person.

Unit 1 of 5

What makes treatment a developmental question?

A treatment makes demands on attention, understanding, motivation and relationships. The opening review uses adolescent anxiety to show how developmental questions enter those demands. Keep the proposed adaptations separate from evidence that they work.

  1. Reading 1 of 9

    Developmentally Informed Therapy for Anxious Adolescents

    Sauter, F. M., Heyne, D., & Westenberg, P. M. (2009). Cognitive behavior therapy for anxious adolescents: Developmental influences on treatment design and delivery. Clinical Child and Family Psychology Review, 12(4), 310–335. https://doi.org/10.1007/s10567-009-0058-z

    Foundational argument · Major synthesis · Moderate · Full work: 26 pages

    Notice how capacities, autonomy and context enter the proposed adaptations.

    Why you’re reading it. Build a framework for examining the later treatment comparisons.

    A question to consider. Two adolescents of the same age struggle with the same exercise for different reasons. What would you assess before proposing an adaptation?

Unit 2 of 5

Whose account and whose goals should count?

Disagreement can concern what happens, why it happens or what should change. The first reading examines the information in different reports; the second asks how participants can use evidence while negotiating treatment decisions. Neither makes the adult’s account automatically authoritative.

  1. Reading 2 of 9

    When Reports About a Young Person Disagree

    De Los Reyes, A. (2011). Introduction to the special section: More than measurement error: Discovering meaning behind informant discrepancies in clinical assessments of children and adolescents. Journal of Clinical Child & Adolescent Psychology, 40(1), 1–9. https://doi.org/10.1080/15374416.2011.533405

    Foundational argument · Methodological contribution · Moderate · Full work: 9 pages

    Look for observations that could distinguish context differences from measurement problems.

    Why you’re reading it. Make disagreement informative before trying to resolve it.

    A question to consider. A parent reports fewer outbursts while a teacher sees no change. What information would help decide whether treatment gains are limited to one setting?

  2. Reading 3 of 9

    Sharing Decisions About Youth Treatment

    Langer, D. A., & Jensen-Doss, A. (2018). Shared decision-making in youth mental health care: Using the evidence to plan treatments collaboratively. Journal of Clinical Child & Adolescent Psychology, 47(5), 821–831. https://doi.org/10.1080/15374416.2016.1247358

    Foundational argument · Accessible · Full work: 11 pages

    Separate reasons to respect participation from claims that participation improves symptoms.

    Why you’re reading it. Connect assessment with a collaborative choice of goals and options.

    A question to consider. An adolescent wants less loneliness and a caregiver wants better attendance. What shared target could be evaluated without erasing either concern?

Unit 3 of 5

Who and what does treatment need to change?

Intervening with a child, a caregiver or a school clinician poses different causal questions. The first trial compares components across home and school, the second targets parent responses to anxiety, and the third adapts an interpersonal approach for adolescent school clinics. These are contrasting examples, not a ranking of formats.

  1. Reading 4 of 9

    Changing Child, Parent and Classroom Interactions

    Webster-Stratton, C., Reid, M. J., & Hammond, M. (2004). Treating children with early-onset conduct problems: Intervention outcomes for parent, child, and teacher training. Journal of Clinical Child & Adolescent Psychology, 33(1), 105–124. https://doi.org/10.1207/s15374424jccp3301_11

    Methodological contribution · Challenging · Full work: 20 pages

    Map each component to the people, settings and outcomes it could change.

    Why you’re reading it. Examine transfer across contexts without assuming more components must be better.

    A question to consider. Which comparison would reveal whether teacher training adds something beyond child training, and what could the missing teacher-only condition have shown?

  2. Reading 5 of 9

    Can Changing Parent Responses Reduce Childhood Anxiety?

    Lebowitz, E. R., Marin, C., Martino, A., Shimshoni, Y., & Silverman, W. K. (2020). Parent-based treatment as efficacious as cognitive-behavioral therapy for childhood anxiety: A randomized noninferiority study of Supportive Parenting for Anxious Childhood Emotions. Journal of the American Academy of Child & Adolescent Psychiatry, 59(3), 362–372. https://doi.org/10.1016/j.jaac.2019.02.014

    Methodological contribution · Moderate · Full work: 11 pages

    Follow the active comparison and the meaning of the noninferiority margin.

    Why you’re reading it. Separate who attends treatment from whose difficulties are expected to improve.

    A question to consider. If both approaches improve anxiety but impose different burdens on a family, what additional outcomes should be measured?

  3. Reading 6 of 9

    Interpersonal Therapy in Adolescent School Clinics

    Mufson, L., Dorta, K. P., Wickramaratne, P., Nomura, Y., Olfson, M., & Weissman, M. M. (2004). A randomized effectiveness trial of interpersonal psychotherapy for depressed adolescents. Archives of General Psychiatry, 61(6), 577–584. https://doi.org/10.1001/archpsyc.61.6.577

    Methodological contribution · Moderate · Full work: 8 pages

    Connect the adolescent setting with recruitment, consent, session attendance and the usual-care comparison.

    Why you’re reading it. Make autonomy and access part of evaluating a youth treatment study.

    A question to consider. How could excluding adolescents who want confidential care alter the trial’s relevance to the clinic population?

Unit 4 of 5

When does flexible treatment improve outcomes?

A young person’s difficulties may not fit one treatment manual. The US trial tests a modular arrangement against standard manuals and usual care. The New Zealand study then shows why the comparison service matters. The difference between findings invites investigation rather than a simple verdict for or against flexibility.

  1. Reading 7 of 9

    Testing Modular Youth Psychotherapy

    Weisz, J. R., Chorpita, B. F., Palinkas, L. A., Schoenwald, S. K., Miranda, J., Bearman, S. K., Daleiden, E. L., Ugueto, A. M., Ho, A., Martin, J., Gray, J., Alleyne, A., Langer, D. A., Southam-Gerow, M. A., Gibbons, R. D., & Research Network on Youth Mental Health. (2012). Testing standard and modular designs for psychotherapy treating depression, anxiety, and conduct problems in youth: A randomized effectiveness trial. Archives of General Psychiatry, 69(3), 274–282. https://doi.org/10.1001/archgenpsychiatry.2011.147

    Methodological contribution · Moderate · Full work: 9 pages

    Identify what changed between the three conditions and which outcomes were reported by whom.

    Why you’re reading it. Evaluate flexibility as a treatment package before treating it as a proven mechanism.

    A question to consider. What additional comparison would isolate flexible sequencing from the training and consultation supporting it?

  2. Reading 8 of 9

    When More Evidence-Based Practice Does Not Improve Outcomes

    Merry, S. N., Hopkins, S., Lucassen, M. F. G., Stasiak, K., Weisz, J. R., Frampton, C. M. A., Bearman, S. K., Ugueto, A. M., Herren, J., Cribb-Su’a, A., Kingi-Uluave, D., Loy, J., Hartdegen, M., & Crengle, S. (2020). Effect of clinician training in the Modular Approach to Therapy for Children vs usual care on clinical outcomes and use of empirically supported treatments: A randomized clinical trial. JAMA Network Open, 3(8), Article e2011799. https://doi.org/10.1001/jamanetworkopen.2020.11799

    Critical reappraisal · Methodological contribution · Moderate · Full work: 12 pages

    Compare the content of usual care and the separation between fidelity and clinical outcomes.

    Why you’re reading it. Test the reach of the earlier result across service contexts.

    A question to consider. If usual care already uses many supported techniques, what outcome pattern would you expect—and what evidence would test that explanation?

Unit 5 of 5

What counts as lasting improvement while life changes?

The final reading follows participants years beyond their initial trial. A later snapshot can show important differences while leaving the intervening course uncertain. Return to the opening question: how should evaluation respond when capacities, settings and goals have changed?

  1. Reading 9 of 9

    What Happens Years After Youth Anxiety Treatment?

    Ginsburg, G. S., Becker, E. M., Keeton, C. P., Sakolsky, D., Piacentini, J., Albano, A. M., Compton, S. N., Iyengar, S., Sullivan, K., Caporino, N., Peris, T., Birmaher, B., Rynn, M., March, J., & Kendall, P. C. (2014). Naturalistic follow-up of youths treated for pediatric anxiety disorders. JAMA Psychiatry, 71(3), 310–318. https://doi.org/10.1001/jamapsychiatry.2013.4186

    Methodological contribution · Moderate · Full work: 9 pages

    Separate initial randomization, early response and the later naturalistic assessment.

    Why you’re reading it. Evaluate durability without turning a predictive association into a causal effect.

    A question to consider. Design a follow-up across the move from school to work that could distinguish persistent benefit, recurrence and newly emerging difficulties.

Scope and omissions

The path spans early childhood through adolescence, with follow-up extending into young adulthood. It does not comprehensively cover infant interventions, play therapy, every developmental disability, trauma treatment, inpatient care or transitions between child and adult services. Cognitive/behavioral and interpersonal approaches provide the main empirical examples; this is not a comparative survey of all traditions. Family-based care for eating disorders and self-harm is optional and developed in the neighboring relational-treatment path. Samples and services are largely from high-income countries, with important exclusions and unequal representation. Developmental capacities should not be inferred from age, diagnosis or cultural group alone. Biological treatment appears in the long-term comparison but is not this syllabus’s subject. No paper establishes a treatment recommendation for an individual child.

Synthesis

Developmental adaptation can change what treatment asks of a young person, who participates, how goals are agreed, and where improvement must take place. Its rationale may be sensible without its benefit yet being established. A favorable trial leaves mechanisms to investigate; an unfavorable average leaves room for individual benefit. The explanation must connect developmental capacities and circumstances with the comparisons actually made.

Choose one example from the path and design a stronger evaluation. Describe a young person’s developmental capacities and circumstances without using age as a complete explanation. Identify the child’s, caregiver’s and other relevant perspectives, including disagreement. Specify the proposed target and mechanism, the comparison, meaningful outcomes and burdens, and evidence that could contradict the account. Plan follow-up through a change in setting or responsibility, including a way to detect deterioration and unwanted effects.

For a broader account of development, continue with How Do We Develop Across the Lifespan?. For relational formats, revisit How Can Couples, Families and Groups Become Settings for Change?. Explore other published paths in Psychotherapy & Psychological Change.

For adaptation beyond developmental questions, continue with How Should Psychotherapy Adapt to the Person and Context?. It examines preferences, culture, treatment selection and the evidence for responding to progress.

Further reading

Optional. Not part of the core sequence.

  • Langer, D. A., Holly, L. E., Wills, C. E., Tompson, M. C., & Chorpita, B. F. (2022). Shared decision-making for youth psychotherapy: A preliminary randomized clinical trial on facilitating personalized treatment. Journal of Consulting and Clinical Psychology, 90(1), 29–38. Paper. A small randomized test of the decision-making proposal. Distinguish greater involvement from evidence about clinical outcomes, and consider limited statistical power.
  • Weisz, J. R., Kuppens, S., Ng, M. Y., Eckshtain, D., Ugueto, A. M., Vaughn-Coaxum, R., Jensen-Doss, A., Hawley, K. M., Krumholz Marchette, L. S., Chu, B. C., Weersing, V. R., & Fordwood, S. R. (2017). What five decades of research tells us about the effects of youth psychological therapy: A multilevel meta-analysis and implications for science and practice. American Psychologist, 72(2), 79–117. Paper. A substantial historical synthesis across treatment problems and settings. Its 39-page scope extends beyond the core’s focused comparisons; it is not a continuously updated estimate.
  • Ng, M. Y., & Weisz, J. R. (2016). Annual Research Review: Building a science of personalized intervention for youth mental health. Journal of Child Psychology and Psychiatry, 57(3), 216–236. Paper. A broader framework for tailoring and testing treatment decisions. It connects developmental adaptation with the later person-and-context question.
  • Lock, J., Le Grange, D., Agras, W. S., Moye, A., Bryson, S. W., & Jo, B. (2010). Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa. Archives of General Psychiatry, 67(10), 1025–1032. Paper. A further active comparison of family participation. The existing guide develops remission definitions and parent involvement in both conditions.
  • Cottrell, D. J., Wright-Hughes, A., Collinson, M., Boston, P., Eisler, I., Fortune, S., Graham, E. H., Green, J., House, A. O., Kerfoot, M., Owens, D. W., Saloniki, E.-C., Simic, M., Lambert, F., Rothwell, J., Tubeuf, S., & Farrin, A. J. (2018). Effectiveness of systemic family therapy versus treatment as usual for young people after self-harm: A pragmatic, phase 3, multicentre, randomised controlled trial. The Lancet Psychiatry, 5(3), 203–216. Paper. An additional family-treatment comparison with a different problem and primary outcome. It guards against generalizing one favorable trial to all youth care.
  • Goodyer, I. M., Reynolds, S., Barrett, B., Byford, S., Dubicka, B., Hill, J., Holland, F., Kelvin, R., Midgley, N., Roberts, C., Senior, R., Target, M., Widmer, B., Wilkinson, P., & Fonagy, P. (2017). Cognitive behavioural therapy and short-term psychoanalytical psychotherapy versus a brief psychosocial intervention in adolescents with unipolar major depressive disorder (IMPACT): A multicentre, pragmatic, observer-blind, randomised controlled superiority trial. The Lancet Psychiatry, 4(2), 109–119. Paper. A broader adolescent depression comparison, with follow-up and the published correction. Consult the existing guide and its correction notice.