Assessing item-feature effects with item response tree models.

U. Böckenholt

Published 2019 in British Journal of Mathematical & Statistical Psychology

ABSTRACT

Recent applications of item response tree models demonstrate that this model class is well suited to detect midpoint and extremity response style effects in both attitudinal and personality measurements. This paper proposes an extension of this approach that goes beyond measuring response styles and allows us to examine item-feature effects. In a reanalysis of three published data sets, it is shown that the proposed extension captures item-feature effects across affirmative and reverse-worded items in a psychological test. These effects are found to affect directional responses but not midpoint and extremity preferences. Moreover, accounting for item-feature effects substantially improves model fit and interpretation of the construct measurement. The proposed extension can be implemented readily with current software programs that facilitate maximum likelihood estimation of item response models with missing data.

PUBLICATION RECORD

  • Publication year

    2019

  • Venue

    British Journal of Mathematical & Statistical Psychology

  • Publication date

    2019-03-26

  • Fields of study

    Medicine, Computer Science, Psychology

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar, PubMed

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CLAIMS

  • No claims are published for this paper.

CONCEPTS

  • No concepts are published for this paper.

REFERENCES

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