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Using Item Scores and Distractors to Detect Item Compromise and Preknowledge

Author

Listed:
  • Kylie Gorney
  • James A. Wollack

    (University of Wisconsin-Madison)

  • Sandip Sinharay
  • Carol Eckerly

    (Educational Testing Service)

Abstract

Any time examinees have had access to items and/or answers prior to taking a test, the fairness of the test and validity of test score interpretations are threatened. Therefore, there is a high demand for procedures to detect both compromised items (CI) and examinees with preknowledge (EWP). In this article, we develop a procedure that uses item scores and distractors to simultaneously detect CI and EWP. The false positive rate and true positive rate are evaluated for both items and examinees using detailed simulations. A real data example is also provided using data from an information technology certification exam.

Suggested Citation

  • Kylie Gorney & James A. Wollack & Sandip Sinharay & Carol Eckerly, 2023. "Using Item Scores and Distractors to Detect Item Compromise and Preknowledge," Journal of Educational and Behavioral Statistics, , vol. 48(5), pages 636-660, October.
    • Handle: RePEc:sae:jedbes:v:48:y:2023:i:5:p:636-660
    DOI: 10.3102/10769986231159923
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