— Cognitive science

Short-term Memory

Term

STM

Domain

Cognitive psychology

First introduced

20th century

IQ relevance

Direct

Short-term Memory (STM) refers to passive holding of information for seconds; ~7±2 items. The concept is central to modern cognitive psychology and psychometrics — particularly to how IQ is theorized, measured, and interpreted.

What short-term memory actually means

In cognitive psychology, short-term memory is operationalized as passive holding of information for seconds; ~7±2 items. It is distinct from related constructs in that it specifically captures the temporal and capacity dimensions of information retention.

How it's measured

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

Relationship to IQ

Short-term Memory 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 short-term memory 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 short-term memory?

Short-term Memory (STM) refers to passive holding of information for seconds; ~7±2 items. It is a central concept in cognitive psychology and IQ measurement.

How is short-term memory different from general IQ?

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

Can short-term memory be improved?

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