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Estimating Conditional Distributions of Scores on an Alternate Form of a Test. Research Report. ETS RR-15-18

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  • المؤلفون: Livingston, Samuel A.; Chen, Haiwen H.
  • اللغة:
    English
  • المصدر:
    ETS Research Report Series. Dec 2015.
  • الموضوع:
    2015
  • نوع التسجيلة:
    Journal Articles
    Reports - Research
  • معلومة اضافية
    • Availability:
      Educational Testing Service. Rosedale Road, MS19-R Princeton, NJ 08541. Tel: 609-921-9000; Fax: 609-734-5410; e-mail: RDweb@ets.org; Web site: https://www.ets.org/research/policy_research_reports/ets
    • Peer Reviewed:
      Y
    • المصدر:
      9
    • الموضوع:
      Scores; Statistical Distributions; Research Reports; Equated Scores; Statistical Analysis; Test Reliability; Alternative Assessment; Accuracy; Computation
    • ISSN:
      2330-8516
    • نبذة مختصرة :
      Quantitative information about test score reliability can be presented in terms of the distribution of equated scores on an alternate form of the test for test takers with a given score on the form taken. In this paper, we describe a procedure for estimating that distribution, for any specified score on the test form taken, by estimating the joint distribution of equated scores on two forms of the test. The procedure requires as input the score distribution and the reliability coefficient, estimated for the test-taker population. In tryouts, the procedure performed well for score distributions like those commonly encountered in large-scale testing situations.
    • نبذة مختصرة :
      As Provided
    • Number of References:
      7
    • الموضوع:
      2016
    • الرقم المعرف:
      EJ1109285