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Introducing a Computerized Figural Memory Test Based on Automatic Item Generation: An Analysis With the Rasch Poisson

David Jendryczko1,2, Laura Berkemeyer2, Heinz Holling2

  • 1Institute for Psychology, Universität Konstanz, Konstanz, Germany.

Frontiers in Psychology
|June 27, 2020
PubMed
Summary

The figumem software generates figural memory test items with varying difficulty. This tool aids in creating parallel test forms, demonstrating its utility in psychological assessment.

Keywords:
Rasch Poisson counts modelautomatic item generationfigural memoryitem response theoryparallel test formsshort-term memoryvisual information load

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Area of Science:

  • Cognitive Psychology
  • Psychometrics
  • Educational Measurement

Background:

  • Developing parallel test forms for figural memory assessment is challenging.
  • Existing methods may lack efficiency and control over item difficulty.
  • Cognitive models can inform the generation of equivalent test items.

Purpose of the Study:

  • To introduce figumem, an automatic item generator for figural memory tests.
  • To evaluate the generated items' psychometric properties and parallelism.
  • To assess the role of visual information load in item difficulty.

Main Methods:

  • Development of the figumem generator in the R programming language.
  • Generation of parallel items across three difficulty levels based on visual information load.
  • Pilot study with participant data collection.
  • Application of Item Response Theory (IRT), specifically the Rasch Poisson counts model, for data analysis.

Main Results:

  • The figumem generator produced items with a satisfying overall fit to the Rasch Poisson counts model.
  • Visual information load was identified as the primary determinant of item difficulty.
  • Minimal differences in difficulty were observed between items generated from the same family, indicating good parallelism.

Conclusions:

  • The figumem generator is a useful tool for creating parallel figural memory test forms.
  • The generator's ability to control difficulty via visual information load is effective.
  • Further research should explore extensions and applications of figumem in various assessment contexts.