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— Cognitive science

Cognitive Load

Term
load theory
Domain
Cognitive psychology
First introduced
20th century
IQ relevance
Direct

Cognitive Load (load theory) refers to the total amount of working memory resource a task demands. The concept is central to modern cognitive psychology and psychometrics — particularly to how IQ is theorized, measured, and interpreted.

What cognitive load actually means

In cognitive psychology, cognitive load is operationalized as the total amount of working memory resource a task demands. It is distinct from related constructs in that it specifically captures a distinct, measurable aspect of cognitive function.

How it's measured

Measured through standardized testing batteries and laboratory paradigms specific to the construct.

Relationship to IQ

Cognitive Load is integrated into the broader theory of IQ and cognitive function. It contributes to and is partially measured by composite IQ scores.

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Why this matters

Understanding cognitive load is foundational for anyone trying to interpret an IQ score meaningfully. The single composite IQ number conceals significant variation across cognitive functions; understanding the components is how you go from "I scored 130" to "I scored 130, with particular strength in [X] and relative weakness in [Y]."

Frequently asked

What is cognitive load?

Cognitive Load (load theory) refers to the total amount of working memory resource a task demands. It is a central concept in cognitive psychology and IQ measurement.

How is cognitive load different from general IQ?

Composite IQ is a weighted aggregate of multiple cognitive abilities. Cognitive Load is one specific component or property that contributes to but is not identical to the IQ score.

Can cognitive load be improved?

Generally limited room for improvement in trait-level cognitive properties; significant variability in measured performance day-to-day.

Related concepts

Related reading

Sources: Carroll, J. B. (1993), Human Cognitive Abilities; Deary, I. J. (2001), Intelligence: A Very Short Introduction; Mackintosh, N. J. (2011), IQ and Human Intelligence.

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