SynthesisNeuropsychology review2018
Meta-Analysis of Intelligence Quotient (IQ) in Obsessive-Compulsive Disorder.
Synthesis in Neuropsychology review, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
17 citing papers in PubMed, 38 citations in OpenAlex.
- IQ and socio-occupational functioning in relation to obsessive-compulsive symptoms severity in a clinical sample of adolescents.Scientific reports · 2025Article
- Externally orienting cues improve cognitive control in OCD.Journal of behavior therapy and experimental psychiatry · 2024Article
- From Cognitive Function to Treatment Efficacy in Obsessive-Compulsive Disorder: Insights from a Multidimensional Meta-Analytic Approach.Journal of clinical medicine · 2024Review
- The Oxidative Status and NaBioMed research international · 2024Article
- Assessing harmonized intelligence measures in a multinational study.Global mental health (Cambridge, England) · 2024Article
- Identifying Replicable Subgroups in Neurodevelopmental Conditions Using Resting-State Functional Magnetic Resonance Imaging Data.JAMA network open · 2023Article
- IQ Modulates Coupling Between Diverse Dimensions of Psychopathology in Children and Adolescents.Journal of the American Academy of Child and Adolescent Psychiatry · 2023Article
- Patterns of psychopathology and cognition in sex chromosome aneuploidy.Journal of neurodevelopmental disorders · 2021Article
- Executive functions and insight in OCD: a comparative study.BMC psychiatry · 2021Article
- Cognitive performance in children and adolescents at high-risk for obsessive-compulsive disorder.BMC psychiatry · 2020Article
- Toward identifying reproducible brain signatures of obsessive-compulsive profiles: rationale and methods for a new global initiative.BMC psychiatry · 2020Article
- Comparison of the Association Between Goal-Directed Planning and Self-reported Compulsivity vs Obsessive-Compulsive Disorder Diagnosis.JAMA psychiatry · 2020Article
- A Guide to Conducting a Meta-Analysis with Non-Independent Effect Sizes.Neuropsychology review · 2019Review
- Obsessive Compulsive Symptoms and Psychopathological Profile in Children and Adolescents with KBG syndrome.Brain sciences · 2019Article
- Neurocognitive deficits in obsessive-compulsive disorder: A selective review.Indian journal of psychiatry · 2019Review
- A Clinical Staging Model for Obsessive-Compulsive Disorder: Is It Ready for Prime Time?EClinicalMedicine · 2019Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Obsessive compulsive disorder (OCD) is associated with a moderate degree of underperformance on cognitive tests, including deficient processing speed. However, despite little research focusing on Intelligence Quotient (IQ) in OCD, it has long been speculated that the disorder is associated with elevated intellectual capacity. The present meta-analytic study was, therefore, conducted to quantitatively summarize the literature on IQ in OCD systematically. We identified 98 studies containing IQ data among individuals with OCD and non-psychiatric comparison groups, and computed 108 effect sizes for Verbal IQ (VIQ, n = 55), Performance IQ (PIQ, n = 13), and Full Scale IQ (FSIQ, n = 40). Across studies, small effect sizes were found for FSIQ and VIQ, and a moderate effect size for PIQ, exemplifying reduced IQ in OCD. However, mean IQ scores across OCD samples were in the normative range. Moderator analyses revealed no significant moderating effect across clinical and demographic indices. We conclude that, although lower than controls, OCD is associated with normative FSIQ and VIQ, and relatively lowered PIQ. These results are discussed in light of neuropsychological research in OCD, and particularly the putative impact of reduced processing speed in this population. Recommendations for utilization of IQ tests in OCD, and directions for future studies are offered.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.