Peer rejection predicted later difficulty — aggression and withdrawal carried most of the risk
The review that established peer acceptance as a developmental indicator
Reviewed by Sian Trombley, CCCFounder, Thrive Family Company
Moderate confidence
Source citation
Parker J. G., Asher S. R. (1987). Peer relations and later personal adjustment: Are low-accepted children at risk?. Psychological Bulletin. https://doi.org/10.1037/0033-2909.102.3.357
Published 1 January 1987 · Added to Thrive 26 July 2026 · Reviewed 26 July 2026
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This is the paper that moved friendship from a soft concern to a measurable risk factor.
Published research findings
The study
Parker and Asher reviewed longitudinal research linking childhood peer acceptance with later adjustment.
What researchers examined
Whether low peer acceptance, aggression and shyness predicted later dropping out, criminality and mental health difficulty.
What they found
Peer rejection and aggression consistently predicted later difficulties, particularly school dropout. Evidence for shyness and withdrawal as independent predictors was weaker.
Thrive editorial interpretation
What this may mean for families
Friendship difficulty deserves an active plan, not reassurance that they will grow out of it.
What this doesn't tell us
Important limitations
Older studies with varied methods; associations do not establish cause.
Evidence confidence describes how much weight this study's design can carry — not how strongly the finding applies to any individual child or family.
Therapist perspective — Thrive interpretation, not a finding of the study
Therapist Perspective
Having one reliable friend is protective. That is often a more realistic goal than popularity.
Practical family considerations
Aim for one solid friendship, not social popularity.
This research summary is educational and does not replace individualized medical, psychological or therapeutic advice.
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Whole-school programmes cut bullying by about a fifth — the intensive ones worked best
2010 · Meta-analysis
Strong confidence
Why it matters
Programmes that involve parents and change adult supervision outperform awareness campaigns.