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Working Memory

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...

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Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

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Published on: June 12, 2017

Categorization Working Memory Span Task: Validation study of two Brazilian alternate versions.

Paula Schimidt Brum¹, Erika Borella², Barbara Carretti²

¹Department of Neurology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.

International Journal of Geriatric Psychiatry

|December 23, 2017

Summary

This summary is machine-generated.

The Categorization Working Memory Span Task (CWMS task) in Brazilian Portuguese is equivalent and stable across versions. Working memory performance is influenced by schooling and global cognition.

Keywords:

aging cognitive testing older adults validation working memory

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Last Updated: Feb 16, 2026

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Area of Science:

Cognitive Psychology
Neuroscience
Psychometrics

Background:

The Categorization Working Memory Span Task (CWMS task) is a complex measure of working memory (WM).
It assesses age and individual differences in WM and its relation to higher cognitive functions like listening comprehension.
Two alternate versions were developed for WM training protocols.

Purpose of the Study:

Translate and adapt the CWMS task for Brazilian Portuguese.
Validate the equivalence and temporal stability of two alternate versions.
Investigate the influence of age and schooling on the CWMS task and its relation to other WM tests.

Main Methods:

81 older adults completed version A and 86 completed version B of the CWMS task.
A subsample (n=85) repeated the task after 6 months to assess temporal stability.
Correlations were examined with schooling and other cognitive tests (MMSE, LNS, SB, DS).

Main Results:

The two versions of the CWMS task demonstrated comparable scores and adequate temporal stability.
Total recall scores showed higher stability compared to other CWMS variables.
Task performance was moderately correlated with schooling and global cognitive function.

Conclusions:

The Brazilian Portuguese versions of the CWMS task are equivalent and temporally stable.
The task is sensitive to the effects of schooling and global cognitive abilities.
This validated task can be used to study working memory in Portuguese-speaking populations.