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Related Concept Videos

Introduction to Cognitive Psychology01:20

Introduction to Cognitive Psychology

Cognitive psychology is the field of psychology dedicated to examining how people think. It attempts to explain how and why we think the way we do by studying the interactions among human thinking, emotion, creativity, language, and problem-solving, as well as other cognitive processes. Cognitive psychology studies how information is processed and manipulated in remembering, thinking, and knowing.
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...

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Utilizing response times in cognitive diagnostic computerized adaptive testing under the higher-order deterministic

Hung-Yu Huang1

  • 1Department of Psychology and Counseling, University of Taipei, Taiwan.

The British Journal of Mathematical and Statistical Psychology
|February 23, 2019
PubMed
Summary

This study introduces new methods for cognitive diagnostic computerized adaptive testing (CD-CAT) that use response times (RTs) to improve attribute mastery and latent trait estimation, reducing the risk of running out of time.

Keywords:
cognitive diagnostic computerized adaptive testinghigher-order DINA modellognormal response time modelresponse timestest speededness

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Area of Science:

  • Educational Measurement
  • Psychometrics
  • Computerized Adaptive Testing

Background:

  • Cognitive diagnostic computerized adaptive testing (CD-CAT) models assess attribute mastery and latent traits.
  • Examinees in CD-CAT may face time limits, leading to speededness and varied risk of not finishing.
  • Response times (RTs) are routinely recorded but often underutilized in CD-CAT item selection.

Purpose of the Study:

  • To incorporate response times (RTs) into item selection for CD-CAT under higher-order models.
  • To develop methods that control test speededness and enhance latent trait estimation using RTs.
  • To evaluate the performance of these new methods compared to traditional approaches.

Main Methods:

  • Developed a modified posterior-weighted Kullback-Leibler (PWKL) method optimizing item selection per time unit.
  • Implemented a shadow-test method to assemble tests within specified time constraints.
  • Conducted simulation studies for fixed- and variable-length CD-CAT exams under the higher-order DINA model.

Main Results:

  • The proposed methods effectively controlled test speededness and reduced the risk of running out of time.
  • Attribute estimation quality was maintained while improving latent trait and speed parameter accuracy.
  • Compared to traditional PWKL, the new methods offered superior performance in simulated CD-CAT environments.

Conclusions:

  • Integrating response times into CD-CAT item selection enhances efficiency and accuracy.
  • The developed modified PWKL and shadow-test methods are effective for higher-order cognitive diagnosis.
  • Future research should explore further applications and refinements of RT-informed CD-CAT.