Factors Affecting the Sample Invariant Properties of Linear and Curvilinear Observed- and True-Score Equating Procedures [microform] / Martha L. Stocking and Others
- Bib ID:
- 5593773
- Format:
- Book and Microform
- Author:
- Stocking, Martha L
- Online Version:
- https://eric.ed.gov/?id=ED395005
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- Description:
-
- [Washington, D.C.] : Distributed by ERIC Clearinghouse, 1988
- 95 p.
- Summary:
-
A sequence of simulations was carried out to aid in the diagnosis and interpretation of equating differences found between random and matched (nonrandom) samples for four commonly used equating procedures: (1) Tucker linear observed-score equating; (2) Levine equally reliable linear observed-score equating; (3) equipercentile curvilinear observed-score equating; and (4) item response theory (IRT) curvilinear true-score equating. The results support the prediction based on theoretical grounds that observed-score equating methods are more affected by sample variation than are true-score equating methods. These results further suggest that matching equating samples on the basis of fallible measures of ability may not be advisable for any conventional equating method except the Tucker method. In addition, the results support a particular hypothesis about IRT equating, suggesting that the use of matched samples cannot be recommended for this equating method either. (Contains 8 tables, 8 figures, and 12 references.) (Author/SLD)
- Notes:
-
- ERIC Note: Version of a paper presented at the Annual Meeting of the American Educational Research Association (New Orleans, LA, April 1988).
- May also be available online. Address as at 14/8/18: https://eric.ed.gov/
- Reproduction:
- Microfiche. [Washington D.C.]: ERIC Clearinghouse microfiches : positive.
- Subject:
- Other authors/contributors:
- Educational Testing Service, Princeton, NJ
- Available From:
- ERIC
- Copyright:
-
In Copyright
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Copyright status was determined using the following information:
- Material type:
- Literary Dramatic Musical
- Published status:
- Published
- Publication date:
- 1988
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