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The way a set of data is measured is called its level of measurement. Correct statistical procedures depend on a researcher being familiar with levels of measurement. For analysis, data are classified into four levels of measurement—nominal, ordinal, interval, and ratio.
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Unlike parametric methods, nonparametric statistics are ideal for nominal and ordinal data, requiring fewer assumptions about the population's nature or distribution. This makes nonparametric methods easier to apply and interpret, as they do not depend on parameters like mean or standard deviation. One common approach in nonparametric analysis is to sort data according to a specific criterion. For instance, we might arrange weather data from hottest to coldest days in a month or rank cities...
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Related Experiment Video

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Multimedia Battery for Assessment of Cognitive and Basic Skills in Mathematics BM-PROMA
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Processing of Ordinal Information in Math-Anxious Individuals.

Àngels Colomé1,2, Maria Isabel Núñez-Peña2,3,4

  • 1Section of Cognitive Processes, Department of Cognition, Development and Educational Psychology, Faculty of Psychology, University of Barcelona, Barcelona, Spain.

Frontiers in Psychology
|May 10, 2021
PubMed
Summary
This summary is machine-generated.

High math-anxious (HMA) individuals show more errors in number ordering tasks, especially with simple sequences. This suggests potential working memory and cognitive flexibility differences compared to low math-anxious (LMA) individuals.

Keywords:
attentional controlcognitive flexibilitymath anxietyordinalityreverse distance effect

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Area of Science:

  • Cognitive Psychology
  • Educational Psychology
  • Neuroscience

Background:

  • Math anxiety significantly impacts cognitive performance.
  • Ordinal judgments are crucial for mathematical understanding.
  • Working memory and cognitive flexibility are key executive functions.

Purpose of the Study:

  • To compare ordinal judgment performance between high math-anxious (HMA) and low math-anxious (LMA) individuals.
  • To investigate the role of working memory and cognitive flexibility in math anxiety.
  • To identify specific task conditions where math anxiety affects performance.

Main Methods:

  • Participants: 40 individuals (20 HMA, 20 LMA) identified by the Shortened Mathematics Anxiety Rating Scale (sMARS).
  • Task: Judging ascending order of number triplets (one-digit/two-digit; counting, balanced, neutral conditions; ordered and unordered sequences).
  • Assessments: Symmetry span test to evaluate working memory capacity.

Main Results:

  • Both groups exhibited a reverse distance effect, performing worse on balanced than counting ordered trials.
  • HMA participants made more errors on one-digit counting ordered triplets.
  • HMA individuals showed lower accuracy in rejecting unordered D2 sequences, linked to symmetry span performance.

Conclusions:

  • Math anxiety is associated with increased errors in specific ordinal judgment tasks, particularly simple ones.
  • Impaired working memory and cognitive flexibility may underlie performance deficits in HMA individuals.
  • HMA individuals struggle more with rejecting incorrect sequences, indicating reduced cognitive flexibility.