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Related Experiment Videos

Expertise sensitive item selection.

P Chow1, H Russell, R E Traub

  • 1Department of Psychology, Nipissing University, 100 College Drive, Box 5002, North Bay, Ontario, Canada P1B 8L.

Psychological Reports
|February 24, 2001
PubMed
Summary
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This study introduces an expertise-sensitive index to select certification test items. This method enhances test alignment with on-the-job performance by analyzing expert and novice performance differences.

Area of Science:

  • Psychometrics
  • Occupational Testing
  • Skill Assessment

Background:

  • Certification tests require careful item selection to accurately reflect job performance.
  • Traditional item selection methods may not sufficiently differentiate between expert and novice capabilities.

Purpose of the Study:

  • To present a novel procedure for selecting items for certification tests.
  • To improve the alignment between certification test content and on-the-job performance.

Main Methods:

  • Development of an expertise-sensitive index (ESI).
  • ESI is calculated as the difference in p-values between experts and novices for each test item.
  • Application of the ESI to a pool of items for a baker certification test.

Related Experiment Videos

Main Results:

  • The expertise-sensitive index effectively identifies items that discriminate between expert and novice performance.
  • Demonstrated practical application of the ESI in selecting relevant certification test items.
  • The procedure offers a quantifiable method for improving test validity.

Conclusions:

  • The expertise-sensitive index provides a robust method for selecting certification test items.
  • This approach enhances the validity of certification tests by focusing on job-relevant skills.
  • The procedure is applicable across various domains requiring skill certification.