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Cognitive estimation and its assessment.

David A Gansler1, Mark Varvaris, Lance Swenson

  • 1a Department of Psychology , Suffolk University , Boston , MA , USA.

Journal of Clinical and Experimental Neuropsychology
|May 20, 2014
PubMed
Summary
This summary is machine-generated.

A revised Cognitive Estimation Task (CET-R) was validated, identifying a seven-item scale (CET-R-7) that reliably measures cognitive estimation. This cognitive ability is linked to intelligence and is impaired in schizophrenia.

Keywords:
CognitionCognition [F02.463.188]Cognitive Science [F04.096.628.255]Cognitive estimationCognitive scienceExecutive Function [F02.463.217]Executive functionNeuropsychological Tests [F04.711.513]Neuropsychological tests

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Area of Science:

  • Neuropsychology
  • Cognitive Psychology
  • Psychometrics

Background:

  • Cognitive estimation, a key aspect of problem-solving hypothesis generation, has been assessed using the Cognitive Estimation Task (CET).
  • A revised version, the CET-R, was developed to improve upon the original task.
  • Validating assessment tools is crucial for reliable measurement in psychological research.

Purpose of the Study:

  • To evaluate the internal consistency, construct validity, and criterion validity of the 10-item revised Cognitive Estimation Task (CET-R).
  • To identify a reliable subset of items from the CET-R for measuring cognitive estimation.
  • To explore the relationship between cognitive estimation and other cognitive functions and its sensitivity to cognitive dysfunction.

Main Methods:

  • The CET-R was administered to 216 healthy adults and 57 adult outpatients with schizophrenia.
  • Exploratory and confirmatory factor analyses (EFA and CFA) were used to assess the internal structure of the CET-R.
  • Correlations were examined between CET-R performance and measures of crystallized intelligence, fluid intelligence, visuospatial problem solving, speed, fluency, memory, and executive function.

Main Results:

  • A seven-item scale (CET-R-7) demonstrated superior internal consistency compared to the full 10-item version.
  • Confirmatory factor analysis supported a single-factor model for the CET-R-7, representing cognitive estimation.
  • CET-R-7 performance was significantly associated with crystallized and fluid intelligence, speed, and fluency, but not memory or executive function.
  • Performance on the CET-R-7 differed based on diagnosis (schizophrenia vs. healthy), sex, and education level, but not age.

Conclusions:

  • The seven-item CET-R-7 is an internally consistent measure of cognitive estimation.
  • Cognitive estimation is a construct related to crystallized and fluid intelligence, generativity, and self-monitoring.
  • The CET-R-7 is sensitive to cognitive dysfunction in adults with schizophrenia, highlighting its clinical relevance.