Peer Influence and Adolescent Offending

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Author: Ukrainian Psychological Hub · Published: October 11, 2026 · Editorial Policy

Peer influence and adolescent offending concerns how adolescents' friendships, group belonging, perceived norms, and shared activities relate to unlawful behavior and participation in offenses. It examines peer selection, social influence, opportunities for co-offending, and the ways protective relationships can support change. These are psychological processes that operate within family, school, community, and legal settings.

Research repeatedly finds that association with delinquent peers is correlated with youth offending. A 2024 umbrella review of systematic reviews and meta-analyses classified evidence concerning peer pressure as suggestive and reported an odds ratio of 2.11 for the pooled association as measured in the included studies. This is a group-level association, not the chance that a particular teenager will offend and not proof that peer pressure caused any alleged offense. Ayano et al. (2024).

What is peer influence in adolescent offending?

Peer influence is a change in behavior, intentions, beliefs, or decisions associated with interactions with other young people. An adolescent may respond to direct requests, imitate peers, seek approval, worry about exclusion, or join friends in shared activities that create opportunities for unlawful conduct. Influence may increase or decrease offending-related behavior, depending on the group and circumstances.

Juvenile delinquency is measured in different ways: self-reported rule breaking, officially recorded offenses, arrests, court petitions, adjudications, and subsequent offending. These outcomes have different meanings. A school disciplinary record or a laboratory risk-taking task is not equivalent to a criminal conviction.

Peer association, peer pressure, co-offending, and peer contagion

Peer association describes relationships or activities with people whose behavior includes delinquency. Peer pressure describes real or perceived social expectations. Co-offending is participation by multiple individuals in the same offense. Peer contagion describes processes through which behaviors or attitudes spread or intensify through interaction. Deviancy training refers more specifically to peers rewarding delinquent talk or actions with laughter, attention, or approval.

These distinctions matter. Knowing someone who was arrested does not establish that an adolescent experienced direct pressure. Being present near an alleged group offense does not by itself establish the person's knowledge, intent, participation, or guilt. Observed peer approval may suggest a mechanism without proving future conduct.

Psychological construct versus legal finding

Peer susceptibility is a developmental research construct; association with delinquent peers is a potential risk exposure; a structured assessment item is a measurement; and a forensic opinion interprets evidence for a specified referral question. Criminal responsibility, guilt, legal capacity, and the elements of an offense are governed by law and adjudicated through legal procedures.

No psychiatric diagnosis can be inferred from peer susceptibility, and clinical diagnosis does not establish criminality. A risk factor is also not an explanation that automatically applies to any one event.

Why adolescence is a sensitive period for peer influence

Adolescents often spend more time with peers, gain freedom to choose activities, and attach greater significance to belonging and social reputation. This changing ecology of social life can alter both motivation and opportunity. Developmental science also describes age-related changes in emotional regulation, reward evaluation, and decisions made under social observation.

The National Academies' developmental juvenile justice review distinguishes these group-average developmental findings from fixed conclusions about individuals. Adolescents differ substantially in experience, emotional maturity, community circumstances, relationships, and the kinds of decisions they make.

Social rewards and the presence of peers

In a laboratory study, Chein and colleagues compared a simulated driving task performed alone with the same task under peer observation. Peer presence was associated with increased adolescent risk taking and greater reward-related brain activity, with age differences in the effect. This experiment supports a social-reward mechanism in a controlled task; it does not measure actual offending or determine responsibility in a criminal case. Chein et al. (2011).

A related experiment found that adolescents preferred more immediate rewards in the presence of peers. Together, the findings suggest that peers may make immediate benefits feel more attractive in some circumstances. Laboratory decisions are simplified, however, and real-world offending involves additional social, legal, and environmental conditions. O'Brien et al. (2011).

Belonging, approval, and fear of exclusion

An adolescent might join an activity because it promises status, excitement, friendship, or protection from exclusion. The same adolescent may refuse an act when important peers disapprove. Influence depends on the actual group's norms and relationships rather than a universal tendency to conform.

Direct pressure can include explicit requests, ridicule, threats, or promises. Indirect pressure often arises when the teenager anticipates a reaction that peers never expressly communicated. Distinguishing these experiences is important in research interviews and forensic accounts.

Peer selection and peer socialization: why correlation can be misleading

The central methodological challenge is explaining why delinquent youth often have delinquent friends. Friendships may reflect existing similarities, shape subsequent conduct, or both. Shared neighborhood circumstances and activities may further contribute.

Selection: similarity can precede friendship

Young people form friendships based on shared schools, activities, neighborhoods, attitudes, and experiences. A teenager with an earlier history of rule-breaking may prefer companions who behave similarly. Observing that the teenager has delinquent friends therefore cannot establish that the friends caused the rule-breaking.

Self-reports can also exaggerate behavioral similarity when respondents infer friends' conduct from their own. Longitudinal designs, independent reports from friends, and social-network analysis help reduce this ambiguity.

Socialization: friends can change later choices

Friends can make rule-breaking seem acceptable by modeling conduct, offering approval, normalizing risk, or introducing new activities. Conversely, they may discourage harm and model accountability. Peer socialization is not exclusively antisocial.

The study Reconsidering Peers and Delinquency examined detailed adolescent network data and found support for both normative influence and opportunity. It cautioned that some earlier studies overstated normative effects because they poorly controlled friendship selection and relied on perceptions of friends' behavior.

Opportunity: what friends do together

Adolescents may offend more often when groups spend unsupervised time in places where risky opportunities arise. This mechanism can operate even without direct encouragement. The same friendship may be associated with low risk in supervised activities and higher risk when combined with particular settings.

The opportunity explanation means that changing locations, access to structured activities, transportation, and supervision may affect behavior even without changing attitudes. Neighborhood resources and safety are therefore relevant to prevention.

Why all three processes matter

Selection, socialization, and opportunity can reinforce one another. A young person may seek similar friends, become accustomed to their approval for risky acts, and increasingly enter settings where opportunities arise. Researchers must consider these intertwined processes rather than claim a single causal route.

A useful case formulation asks what came first, which behavior is independently corroborated, what changed across time, and which alternatives were realistically available.

Peer contagion and deviancy training

Peer contagion occurs when social interaction amplifies behavior or emotional responses. Deviancy training is one studied mechanism: young people respond positively to descriptions or enactments of rule-breaking, and these reactions may reinforce further delinquent talk or activity.

A major review of peer contagion discusses experimental, longitudinal, and network evidence and identifies developmental stage, prior peer rejection, supervision, and intervention settings as potentially important moderators.

How reinforcement can occur

Imagine two teenagers recounting risky conduct and rewarding each other's stories with laughter. Social approval may make similar stories or acts more appealing. Repeated interactions can contribute to local norms that differ from what other members of the community consider acceptable.

This is a proposed process supported in particular research settings. It does not follow that every joke about crime produces criminal behavior, that all friendships contain deviancy training, or that observation of such talk proves an offense occurred.

Peer contagion is not automatically gang membership

Most friendship groups have no formal gang organization. Some youth offenses involve ordinary companions rather than structured criminal groups. The National Research Council's juvenile crime review describes how juvenile co-offending can occur without the characteristics commonly associated with gangs.

Investigators should avoid using gang labels from clothing, neighborhood residence, online association, or group presence alone. A specific claim requires evidence meeting the applicable legal or administrative criteria.

Co-offending: how group situations influence adolescent crime

Juvenile offenses often involve more than one person. Shared activities can facilitate opportunity, diffusion of responsibility, coordination, or impulsive escalation. Group roles may be unequal: one person initiates an act, another follows, and another tries to leave.

A psychological explanation of group influence must not replace the factual analysis of each person's conduct. Investigators need to establish who did what, who knew what, when communications occurred, whether threats or power imbalances were present, and what evidence corroborates each account.

Mere presence versus individual participation

Being near friends when an act happens does not reveal intent, knowledge, or the elements of a legal offense. Rules concerning accomplice liability, conspiracy, duress, and related doctrines differ by jurisdiction.

An expert may describe developmental susceptibility or coercive dynamics, while the legal decision-maker applies governing law. General population research cannot determine a particular defendant's guilt or innocence.

Coercion and ordinary persuasion

Friends may invite participation, express disapproval, threaten retaliation, or physically constrain someone. These are different factual patterns. Ordinary social approval and legally relevant coercion cannot be equated.

Evidence may include time-stamped messages, independently corroborated witness accounts, age differences, documented threats, and the person's realistic options. Evaluators should make the limits of that evidence explicit.

Digital peer groups and online influence

Online group chats, livestreams, and social networks can distribute approval, challenges, threats, or encouragement. Records may preserve messages but require authentication and interpretation of the full conversational context.

Evidence that an online interaction caused an offense is case-specific. Researchers should distinguish digital contact, exposure to content, direct recruitment, planning, and actual participation rather than treating all online association as a single risk factor.

How strong is the scientific evidence?

The repeated association between delinquent peers and adolescent offending is established across observational literatures. Specific causal mechanisms receive varying support from longitudinal network studies, experiments, and intervention research. The quality of inference depends on how peers and behavior are measured.

The 2024 umbrella review evaluated 58 potential risk and protective factors and classified evidence for peer pressure as suggestive. The pooled estimate cannot be transferred directly to a specific adolescent, offense type, population, or legal question.

Longitudinal evidence

Research that follows the same adolescents can examine whether peer affiliation precedes later behavioral change and whether prior behavior accounts for the association. Repeated measurement is important, but unmeasured family, school, neighborhood, or individual differences may remain.

Longitudinal social-network studies can measure friendships and behavior of both parties independently. They improve causal reasoning by examining friendship formation alongside behavioral change, yet the conclusions still depend on modeling assumptions.

Experimental evidence

Randomized peer-observation or social-norm manipulations establish causal effects for the task studied. In one experiment involving 520 adolescents aged 11 to 18, exposure to alleged peer norms shifted participants' stated intentions about prosocial and antisocial actions. The outcome was not a criminal offense or a legal finding. Ahmed and colleagues (2020).

A laboratory experiment with simulated risk does not automatically predict actual offending; criminal behavior involves different stakes, monitoring, prior experience, and institutional responses.

Official records and measurement bias

Arrests, referrals, adjudications, self-reported delinquency, and convictions each capture a different slice of events. Official rates are affected by policing, reporting, procedural decisions, and local juvenile justice systems.

A report should define its outcome precisely. It should also recognize that differences across populations may partly reflect unequal surveillance or system contact rather than differences in underlying behavior.

Predictive validity and calibration

A statistically associated peer factor is not a reliable individual forecast merely because its pooled odds ratio exceeds one. Predictive value depends on the base rate, time horizon, sensitivity, specificity, calibration, and relevant population. A model can distinguish groups moderately well yet still produce substantial false-positive or false-negative classifications.

For illustration, if a hypothetical tool flagged 100 adolescents and only 20 later offended within the defined period, 80 flags would be false positives. This is a mathematical example, not the performance of any particular instrument.

Such errors have real consequences. False positives may increase surveillance and restrictions; false negatives may leave needs unidentified. Instruments require validation for their intended purpose and population, including assessment of demographic fairness and decision impact.

Family, school, and community conditions

Peer relationships operate within social environments. School belonging, caregiver relationships, exposure to harm, neighborhood safety, structured activities, and access to resources can all affect friendships and offending-related opportunities.

The 2024 umbrella review identified evidence concerning parental supervision, adverse experiences, school bullying, and supportive school environments alongside individual-level factors. Those relationships are probabilistic and should not be converted into blame toward caregivers or communities.

Supportive adults and developmentally appropriate supervision

Reliable adult relationships can provide guidance, alternatives, and help in situations involving coercion or threatened exclusion. Supervision includes knowing where young people spend time and who can provide support, while respecting their development and circumstances.

Caregiving opportunities differ across work schedules, economic situations, safety conditions, and family structures. A statistical variable labeled poor supervision is not evidence of intentional parental wrongdoing.

School climate and peer norms

Schools shape opportunities for cooperation, exclusion, bullying, achievement, and shared activities. A longitudinal study of Swiss classrooms found that classmates' prosocial behavior predicted lower subsequent antisocial behavior in individuals in its studied setting. Prosocial classroom study (2018).

A 2025 systematic review of school bonding among justice-involved youth highlights attachment to school as a relevant context while showing that the specific evidence base remains limited.

Neighborhood context

Adolescents in the same neighborhood may share exposures, opportunities, and constraints. A correlation between friendship and delinquency can be affected by local conditions, making it important to examine accessible recreation, transportation, employment pathways, and safety.

Neighborhood residence, poverty, ethnicity, migration history, or social disadvantage should never be treated as a personal criminal propensity. Fairness requires separating actual behavior from environmental stereotypes.

Positive peer influence as a protective process

Peer influence can encourage cooperation, honesty, help-seeking, and resistance to harmful group norms. Adolescence provides opportunities to learn responsible group participation as well as to encounter risk.

An experimental study reported age-related variation in susceptibility to prosocial information. Foulkes and colleagues (2018). Another study using incentivized donations found prosocial social influence in adolescents and young adults, while measuring donation decisions rather than criminal outcomes. Chierchia et al. (2020).

Quality of friendship matters

Constructive friendships provide belonging, realistic accountability, shared interests, and safe ways to handle conflict. A peer network may contain both supportive and harmful processes; sorting every individual into good and bad categories would conceal that complexity.

Changing social networks can require help with loneliness, safety, transportation, school transitions, and access to meaningful activities. Prevention is stronger when the young person can realistically sustain alternative relationships.

Peers and desistance from offending

As teenagers grow older, they may change friendship groups, educational roles, work routines, and living arrangements. Reduced offending can follow altered opportunities and relationships, while earlier reductions in offending may also facilitate new friendships.

See Developmental Pathways to Offending: From Childhood Risk to Adult Crime for the wider longitudinal picture. The present article focuses on peer mechanisms.

Peer influence in juvenile justice assessment

Forensic or juvenile justice practitioners may consider peer affiliations when evaluating needs, strengths, opportunities, coercion, and appropriate intervention settings. The exact question must be defined: an inquiry into potential future needs differs from determining whether a past offense occurred.

Assessment should combine relevant sources, obtain corroboration where possible, document uncertainties, and avoid using a single peer score as an individual verdict. The individual young person's perspective matters, including whether a relationship provides protection, identity, or safety despite associated risks.

Risk factors versus risk scores

A risk factor is a variable statistically associated with an outcome. A screening result or assessment score summarizes information according to an instrument. A forensic opinion evaluates a legally relevant referral question. None is a legal determination of guilt.

Predictive performance should be reported with the measure's population, timeframe, calibration, sensitivity and specificity when available, and evidence concerning false positives, false negatives, subgroup validity, and cultural fairness.

Culture, disability, and fairness

The meaning of social association varies across communities, school settings, and developmental circumstances. Evaluators should avoid inferring deviance from ordinary cultural patterns of companionship, disability-related social experiences, or contact with law enforcement.

Police exposure, referral practices, language barriers, and unequal access to prosocial opportunities can shape the information available. An ethical evaluation makes these limitations explicit rather than presenting apparent precision that the data cannot support.

Mental health and clinical concepts

A psychiatric condition does not establish youth offending, violence, peer influence, or legal incapacity. If clinical symptoms are relevant, they require independent evaluation and should be interpreted for the particular question.

For broader risk and protective evidence, read Risk and Protective Factors for Criminal Behavior. This article retains its specific ownership of adolescent peer mechanisms.

Peer influence and criminal responsibility: the legal boundary

Psychological evidence may help explain why adolescents are sensitive to peer approval and social pressure. Its significance for criminal responsibility, sentencing, coercion, intent, competency, and admissibility depends on the law of the jurisdiction.

In the United States, Roper v. Simmons (2005) held that the death penalty cannot be imposed for an offense committed under age eighteen, with the majority opinion considering developmental vulnerability to outside influences. Miller v. Alabama (2012) barred mandatory life-without-parole sentences for juvenile homicide offenders. These holdings address specific constitutional sentencing questions, not every legal setting.

Developmental immaturity and culpability

Developmental evidence can be relevant to proportionality and to understanding decision-making under pressure. Steinberg and Scott (2003) set out a developmental framework for considering adolescent responsibility.

Average developmental differences cannot establish what a particular adolescent knew or intended. A court requires evidence pertinent to the applicable legal standard and specific alleged conduct.

Duress, persuasion, and group responsibility

Legal concepts such as duress, accomplice liability, and conspiracy have jurisdiction-specific definitions. The existence of friendship or social pressure does not automatically satisfy or defeat their elements.

Professional opinion should distinguish documented threats, voluntary participation, dependence, power imbalance, opportunities to withdraw, and alternative explanations. Psychological science can inform factual interpretation without replacing legal adjudication.

Competency and procedural rights

Competency to stand trial, the ability to understand legal rights, suggestibility during questioning, and criminal responsibility are distinct psycholegal questions. Peer pressure alone determines none of them.

A youth's developmental functioning may warrant particular safeguards, but those protections must be established under applicable procedural law. Experts should identify the precise referral question and evidentiary limits.

Prevention and intervention: what follows from the evidence?

Effective responses should address the interaction of social reinforcement, friendship opportunities, adult support, and local environment. They should make prosocial belonging genuinely available while avoiding interventions that unnecessarily reinforce harmful behavior.

The National Academies report on juvenile justice practice highlights structured, supervised settings and cautions about unsupervised contact among highly antisocial peers in juvenile corrections. The U.S. Office of Juvenile Justice and Delinquency Prevention recommends careful use of evaluated programs and practices.

Structured activities and mentoring

Supervised recreation, educational supports, accessible transportation, constructive mentoring, and community activities can expand real alternatives. Their effectiveness depends on program implementation, safety, inclusion, and outcomes rather than simply on attendance.

Programs should assess which adolescents benefit, who may be excluded, whether participation is sustained, and whether measured outcomes change after appropriate follow-up.

Family- and community-based approaches

Some interventions work across youth, family, school, and community contexts. Evidence should be evaluated program by program, with attention to comparison conditions, the severity of participants' problems, implementation fidelity, and measured reoffending.

A 2025 systematic review and meta-analysis found limited evidence that multisystemic therapy or functional family therapy outperformed usual care overall in reducing adolescent delinquency and antisocial behavior, despite positive findings for some specific outcomes.

Does grouping justice-involved youth create more risk?

Some studies and theoretical work find that unsupervised peer aggregation can strengthen harmful social reinforcement. Dishion, McCord, and Poulin (1999) documented concerns and intervention findings consistent with iatrogenic peer effects.

However, a detailed review and meta-analytic assessment found 17 of 18 tests did not support a generalized increase in harmful outcomes from group treatment. Weiss and colleagues (2005). Group treatment is not categorically harmful; group composition, supervision, structure, needs, and outcome evidence matter.

Diversion and proportionate intervention

Diversion can redirect suitable cases from formal juvenile court processing toward accountability and support, depending on jurisdiction and program quality. The OJJDP review of diversion reports varied results and supports continued attention to evaluation.

The decision to divert is a legal and policy matter. It requires consideration of actual circumstances, services, proportionality, and safety, not assumptions based on friendship group membership alone.

Practical implications

Parents and caregivers can ask where friendships feel supportive, whether young people feel free to refuse requests, and what safe alternatives exist. Open conversations about specific situations are more informative than assigning moral labels to friends.

Schools can strengthen fair expectations, inclusive activities, anti-bullying responses, constructive student leadership, and well-supported opportunities for belonging. Disciplinary measures should distinguish individual conduct from association and avoid collective stigma.

Clinicians can explore peer relationships alongside safety, emotional distress, trauma exposure, exclusion, coercion, and strengths. A social risk factor should never be used as a clinical diagnosis.

Probation officers, lawyers, and forensic practitioners should document concrete behaviors and sources, attend to the adolescent's voice, assess power differences, and explain uncertainty. Restrictive decisions should be based on lawful individualized grounds and evidence of likely benefit.

Adolescents who experience intimidation, coercion, or pressure to take the blame benefit from access to trusted adults and qualified professional or legal assistance appropriate to the situation.

Myths and misconceptions

Myth: delinquent friends inevitably make someone delinquent

Friendship association is a statistical correlate, while actual outcomes depend on selection, opportunity, other relationships, individual circumstances, and changing contexts. No single exposure determines a person's future.

Myth: all peer pressure is explicit

A young person may conform without being directly asked, anticipating acceptance or ridicule. Conversely, direct coercion can occur. The two require different evidence and interventions.

Myth: adolescent brain research proves a defense in court

Neuroscience demonstrates effects in specific tasks and study populations. Legal questions require case evidence and governing law. A group-average brain response cannot establish individual intent or culpability.

Myth: a group of friends is automatically a gang

Co-offending, friendship association, and organized gang involvement are different classifications with different evidence. The label should never substitute for investigation.

Myth: group programs always increase delinquency

Evidence concerning harmful aggregation is mixed and context-dependent. Poorly supervised interactions may create risks, while well-structured programs must be evaluated on their own outcomes.

Myth: peers can only make risk worse

Prosocial behavior and supportive friendships can influence adolescent decisions in constructive directions. The existence of harmful influence does not negate protective social learning.

Frequently asked questions

What is the link between peer influence and juvenile delinquency?

Association with delinquent peers and perceived peer pressure are correlated with youth offending. Mechanisms include friendship selection, social learning, group norms, shared opportunities, and co-offending. Causal attribution to a particular youth or act requires much stronger case-specific evidence.

Are adolescents more sensitive to friends than adults?

Developmental experiments often find elevated sensitivity to peer observation or peer norms on particular tasks. These are average tendencies that differ across individuals and contexts and cannot be treated as universal facts about capacity.

Does peer selection differ from peer pressure?

Selection concerns how friendships form among similar young people. Pressure concerns expectations, encouragement, or coercion within relationships. Both may contribute to the same observed association.

What is peer contagion?

Peer contagion is the amplification or transmission of problematic behavior through interaction. Deviancy training is one potential mechanism involving social reinforcement of rule-breaking talk or actions.

Can a teenager be guilty just for being present when friends offend?

Presence alone does not define guilt. Criminal liability depends on the evidence and applicable jurisdiction-specific legal elements, including any rules on participation or assistance.

Do adolescents grow out of peer-related offending?

Offending trajectories vary, and many young people reduce offending as circumstances, roles, opportunities, and relationships change. No single friendship change guarantees an outcome.

Can positive friends help reduce risk?

Positive peer norms, belonging, and supportive environments may contribute to constructive behavior. The degree to which a particular intervention reduces offending must be evaluated empirically.

Should risk assessment include delinquent peers?

Peer relations can be relevant in appropriately validated instruments, but an individual peer score is not a finding of guilt. The assessor must consider context, protective factors, limitations, population validity, and error rates.

Is peer pressure a legal defense?

Legal significance depends on the jurisdiction and facts. Ordinary influence and legally recognized coercion are separate concepts. Qualified legal counsel should interpret the governing standard.

Do group therapies increase youth offending?

Some evidence raises concerns about peer contagion in particular group conditions, while other reviews reject a generalized harmful effect. Outcomes depend on program structure, supervision, selection, and evaluation.

References

Ahmed, S., et al. (2020). Susceptibility to prosocial and antisocial influence in adolescence. Journal of Adolescence, 84, 56–68. https://doi.org/10.1016/j.adolescence.2020.07.012

Ayano, G., et al. (2024). Risk and protective factors of youth crime: An umbrella review of systematic reviews and meta-analyses. Clinical Psychology Review, 113, 102479. https://doi.org/10.1016/j.cpr.2024.102479

Chein, J., Albert, D., O'Brien, L., Uckert, K., & Steinberg, L. (2011). Peers increase adolescent risk taking by enhancing activity in the brain's reward circuitry. Developmental Science, 14(2), F1–F10. https://doi.org/10.1111/j.1467-7687.2010.01035.x

Chierchia, G., Pi-Sunyer, B. P., & Blakemore, S.-J. (2020). Prosocial influence and opportunistic conformity in adolescents and young adults. Psychological Science, 31(12), 1585–1601. https://doi.org/10.1177/0956797620957625

Dishion, T. J., & Tipsord, J. M. (2011). Peer contagion in child and adolescent social and emotional development. Annual Review of Psychology, 62, 189–214. https://doi.org/10.1146/annurev.psych.093008.100412

Dishion, T. J., McCord, J., & Poulin, F. (1999). When interventions harm: Peer groups and problem behavior. American Psychologist, 54(9), 755–764. https://pubmed.ncbi.nlm.nih.gov/10510665/

Foulkes, L., et al. (2018). Age differences in the prosocial influence effect. Developmental Science, 21(6), e12666. https://doi.org/10.1111/desc.12666

Haynie, D. L., & Osgood, D. W. (2005). Reconsidering peers and delinquency: How do peers matter? Social Forces, 84(2), 1109–1130. https://doi.org/10.1353/sof.2006.0018

Miklósi, M., & Kovács, K. E. (2025). Factors influencing school bonding among juvenile offenders: The experience of a systematic review. International Journal of Educational Research Open, 8, 100441. https://doi.org/10.1016/j.ijedro.2025.100441

Miller v. Alabama, 567 U.S. 460 (2012). Supreme Court of the United States. https://www.govinfo.gov/app/details/USREPORTS-567/USREPORTS-567-460

National Research Council & Institute of Medicine. (2001). Juvenile crime, juvenile justice. National Academies Press. https://doi.org/10.17226/9747

National Research Council. (2013). Reforming juvenile justice: A developmental approach. National Academies Press. https://doi.org/10.17226/14685

O'Brien, L., Albert, D., Chein, J., & Steinberg, L. (2011). Adolescents prefer more immediate rewards when in the presence of their peers. Journal of Research on Adolescence, 21(4), 747–753. https://doi.org/10.1111/j.1532-7795.2011.00738.x

Office of Juvenile Justice and Delinquency Prevention. (2017). Model Programs Guide literature review: Diversion from formal juvenile court processing. U.S. Department of Justice. https://ojjdp.ojp.gov/library/publications/model-programs-guide-literature-review-diversion-formal-juvenile-court

Office of Juvenile Justice and Delinquency Prevention. (n.d.). Evidence-based programs. U.S. Department of Justice. https://ojjdp.ojp.gov/evidence-based-programs

Prosocial classroom behavior study. (2018). Avoiding antisocial behavior among adolescents: The positive influence of classmates' prosocial behavior. Journal of Adolescence, 68, 136–145. https://doi.org/10.1016/j.adolescence.2018.07.013

Roper v. Simmons, 543 U.S. 551 (2005). Supreme Court of the United States. https://www.law.cornell.edu/supremecourt/text/543/551

Steinberg, L., & Scott, E. S. (2003). Less guilty by reason of adolescence: Developmental immaturity, diminished responsibility, and the juvenile death penalty. American Psychologist, 58(12), 1009–1018. https://doi.org/10.1037/0003-066X.58.12.1009

Weiss, B., et al. (2005). Iatrogenic effects of group treatment for antisocial youths. Journal of Consulting and Clinical Psychology. https://pubmed.ncbi.nlm.nih.gov/16392977/

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