Tag Archives: G factor (psychometrics)

Age related cognitive decline is real

7 Mar

While we may be able to do some things to slow cognitive decline, a recent study published in the journal Intelligence reports evidence that age related cognitive decline is real:

“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.”

Cognitive strengths of older workers

2 May

From The Association for Psychological Science:

“Scientists have long known that our ability to analyze novel problems and reason logically, also known as fluid intelligence, peaks around age 20 and then begins a slow decline. However, two new studies confirm that skills related to crystallized intelligence—made up of a person’s acquired knowledge and experience—appear to peak later in life, often after age 40.”

 

 

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