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Adolescent Paranoia: Prevalence, Structure, and Causal Mechanisms
Jessica C Bird1,2, Robin Evans3, Felicity Waite1,2
1Department of Psychiatry, University of Oxford, Oxford, UK.
Adolescent paranoia is common and linked to negative emotions and peer issues. While social media isn't a direct cause, anxiety and depression may contribute to paranoia, impacting relationships.
Area of Science:
- Psychology
- Adolescent Development
- Mental Health Research
Background:
- Adolescence presents unique challenges including self-consciousness and peer influence, potentially fostering paranoia.
- Social interactions, both online and offline, are unpredictable during this developmental stage.
- Research on adolescent paranoia is limited, despite its potential emergence during this period.
Purpose of the Study:
- To investigate the prevalence and structure of paranoia in adolescents.
- To explore the probabilistic causal mechanisms underlying adolescent paranoia.
- To examine the relationships between paranoia and various affective, cognitive, and social factors.
Main Methods:
- A representative school cohort of 801 adolescents (aged 11-15) participated.
- Participants completed measures of paranoia and related factors.
- Bayesian analysis with Directed Acyclic Graphs (DAGs) was employed to assess causal interactions.
Main Results:
- Paranoid thoughts are common in adolescents, exhibiting a hierarchical structure with social fears, threat fears, and conspiracy concerns.
- Paranoia showed dependent relationships with negative affect, peer difficulties, bullying, and social media cognitive-affective responses.
- Negative affect likely contributes to paranoia, which in turn impacts peer relationships; social media use was not a direct causal factor.
Conclusions:
- A spectrum of paranoia exists in adolescence, with occasional suspicions being normal.
- Anxiety and depression are strongly linked to paranoia and may play a causal role in its development.
- The clinical significance of paranoia in adolescents seeking mental health services requires further investigation.
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Criteria for Causality: Bradford Hill Criteria - II
Criteria for Causality: Bradford Hill Criteria - I

