• Publications
  • Influence
A confirmatory factor analysis of the Hospital Anxiety and Depression scale: comparing empirically and theoretically derived structures.
OBJECTIVES To compare the fit of various factor solutions for the Hospital Anxiety and Depression scale (HAD; Zigmond & Snaith, 1983). DESIGN A cross-sectional postal survey was used to collect theExpand
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Age and sex differences in reaction time in adulthood: results from the United Kingdom Health and Lifestyle Survey.
Reaction times (RTs) slow and become more variable with age. Research samples are typically small, biased, and of restricted age range. Consequently, little is known about the precise pattern ofExpand
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Effect of breast feeding on intelligence in children: prospective study, sibling pairs analysis, and meta-analysis
Abstract Objective To assess the importance of maternal intelligence, and the effect of controlling for it and other important confounders, in the link between breast feeding and children'sExpand
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Reaction Time Explains IQ's Association with Death
  • I. Deary, G. Der
  • Medicine, Psychology
  • Psychological science
  • 1 January 2005
Lower IQ is associated with earlier death, but the cause of the relationship is unknown. In the present study, psychometric intelligence and reaction times were both significantly related toExpand
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Incidence and outcome of schizophrenia in whites, African-Caribbeans and Asians in London.
BACKGROUND Several previous studies have indicated high rates of schizophrenia in African-Caribbeans in the UK compared to White population. METHOD All people aged 18 to 64 years residing in twoExpand
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The incidence of operationally defined schizophrenia in Camberwell, 1965-84.
We established first-contact rates of schizophrenia in the defined area of Camberwell between 1965 and 1984. The rate of schizophrenia, whether defined by ICD, RDC, or DSM-III criteria, rose over theExpand
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Can we explain increases in young people’s psychological distress over time?
This paper aims to explain previously described increases in self-reported psychological distress between 1987 and 2006 among samples identical in respect of age (15 years), school year andExpand
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Peer victimization and depression in early-mid adolescence: a longitudinal study.
BACKGROUND Despite considerable evidence for psychological distress among children and young people who experience peer victimization, cross-sectional studies cannot determine the direction of theExpand
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Intelligence in youth and all-cause-mortality: systematic review with meta-analysis.
BACKGROUND A number of prospective cohort studies have examined the association between intelligence in childhood or youth and life expectancy in adulthood; however, the effect size of thisExpand
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Symptoms of depression and cardiovascular reactions to acute psychological stress: Evidence from a population study
Depression and exaggerated cardiovascular reactivity are considered risk factors for cardiovascular disease, possibly as a result of common antecedents, such as altered autonomic nervous systemExpand
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