ArticleIntelligence
Processing speed differences between 70- and 83-year-olds matched on childhood IQ.
Article in Intelligence. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 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
8 citing papers in PubMed, 17 citations in OpenAlex.
- Pathways from chronic stress to cognitive decline: A multi-cohort mediation analysis of inflammation and immune-related gene expression.Brain, behavior, & immunity - health · 2026Article
- Mapping cognitive diversity in older adults through community-based digital screening via mobile devices: a cross-sectional latent class analysis.Frontiers in digital health · 2025Article
- Article
- Proportion of cognitive loss attributable to terminal decline.Neurology · 2020Article
- Mene Mene Tekel Upharsin: Clerical Speed and Elementary Cognitive Speed are Different by Virtue of Test Mode Only.Journal of Intelligence · 2019Article
- Stephen Jay Gould's Analysis of the Army Beta Test in The Mismeasure of Man: Distortions and Misconceptions Regarding a Pioneering Mental Test.Journal of Intelligence · 2019Article
- Brain structural differences between 73- and 92-year olds matched for childhood intelligence, social background, and intracranial volume.Neurobiology of aging · 2018Article
- A watershed model of individual differences in fluid intelligence.Neuropsychologia · 2016Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Processing speed is an important human cognitive capability that might underlie differences in other cognitive skills and their aging. We aimed to test aging-related processing speed differences using a novel cross-sectional design that adjusted for cognitive ability tested in youth. We examined aging differences on three different ways of assessing processing speed: psychometric, experimental, and psychophysical. We compared large narrow-age cohorts of 70- and 83-year-old people who were matched for cognitive ability in childhood. There were decrements of substantial effect size in all processing speed assessments in the older group that were not accounted for by prior cognitive ability, health, or fitness differences, though these factors also contributed to processing speed differences. These findings confirm age-related cognitive slowing using an unusual research design, and provide evidence against recent theories characterizing aging-related cognitive decline as a myth.
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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.