The SAGE Encyclopedia of Educational Research, Measurement, and
                    Evaluation

Christine E. DeMars

doi:10.4135/9781506326139

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Item Information Function

By: Christine E. DeMars
In:The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation
Chapter DOI:https://doi.org/10.4135/9781506326139
Subject:Special & Inclusive Education (general), Emotional Intelligence
Keywords:parameters

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Item Information Function

In item response theory, the item information function is a measure of how much statistical information a test item provides. Item information is a function of θ, the ability, proficiency, ...

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  DeMars, C. (2018). Item information function. In The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation (Vol. 4, pp. -). SAGE Publications, Inc., https://doi.org/10.4135/9781506326139
  
  DeMars, Christine E. "Item Information Function." In The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation, . Thousand Oaks,: SAGE Publications, Inc., 2018. https://doi.org/10.4135/9781506326139.
  
  DeMars, C. 2018. Item Information Function. In: The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation. Thousand Oaks,: SAGE Publications, Inc. pp. Available at: <https://doi.org/10.4135/9781506326139> [Accessed 1 Dec 2023].
  
  DeMars, Christine E. "Item Information Function." The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation. Vol. 4. Thousand Oaks,: SAGE Publications, Inc., 2018, pp. . Sage Knowledge, doi: https://doi.org/10.4135/9781506326139.
  
  DeMars, Christine E.. Item information function. In The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation. Vol. 4. Thousand Oaks,: SAGE Publications, Inc.; 2018: -. doi:10.4135/9781506326139
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