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How Data are Classified: Categorical Data01:11

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A variable, usually notated by capital letters such as X and Y, is a characteristic or measurement that can be determined for each member of a population. Data are the actual values of variables. They may be numbers, or they may be words. Datum is a single value.
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Nominal Level of Measurement00:56

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During Piaget's concrete operational stage, from ages 7 to 11, children exhibit a marked increase in logical thinking skills, specifically in relation to tangible, real-world events. This stage is characterized by the development of several essential cognitive concepts, including conservation, reversibility, and classification, all of which support the child's evolving capacity for structured thought.
Conservation and Constancy of Quantity
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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
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Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
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How basic-level objects facilitate question-asking in a categorization task.

Azzurra Ruggeri1, Markus A Feufel2

  • 1Center for Adaptive Behavior and Cognition, Max Planck Institute for Human Development Berlin, Germany ; Department of Psychology, University of California, Berkeley Berkeley, CA, USA.

Frontiers in Psychology
|July 29, 2015
PubMed
Summary
This summary is machine-generated.

Presenting information at a basic level, rather than a subordinate level, helps children and adults ask better questions when categorizing objects. This finding impacts cognitive psychology and developmental studies.

Keywords:
binary categorizationdevelopmentinclusivenessinformation searchquestion-asking

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Area of Science:

  • Cognitive Psychology
  • Developmental Psychology
  • Information Processing

Background:

  • Categorization is crucial for everyday reasoning, including diagnosis and event analysis.
  • Understanding how information presentation affects categorization strategies is key to cognitive development.

Purpose of the Study:

  • To investigate the impact of object inclusiveness level (basic vs. subordinate) on categorization performance.
  • To examine how this influence varies across age groups (children and adults).

Main Methods:

  • Three studies employed a sequential binary categorization task.
  • A computerized version of the Twenty Questions game was used in Study 1.
  • Feature generation and selection were analyzed in Studies 2 and 3.

Main Results:

  • Basic-level object presentation significantly facilitated asking more effective questions.
  • The effect is linked to the types of differentiating features generated by participants.
  • Basic-level presentation does not primarily enhance feature selection efficiency.

Conclusions:

  • Basic-level categorization aids effective information gathering in sequential tasks.
  • Cognitive development influences how object information is processed for categorization.
  • Findings contribute to understanding decision-making and problem-solving strategies.