Confidence Weighting Plus Coombs-Type Response Options [microform] : A Good Idea That Failed / Alfred D. Garvin
- Bib ID:
- 5234309
- Format:
- Book and Microform
- Author:
- Garvin, Alfred D
- Online Version:
- https://eric.ed.gov/?id=ED065551
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- Description:
-
- [Washington, D.C.] : Distributed by ERIC Clearinghouse, 1972
- 7 p.
- Summary:
-
Confidence weighting (CW) tends to improve the reliability of easy tests; the Coombs-type multiple-response (MR) option tends to improve the reliability of hard tests. It was hypothesized that, on a test of moderate difficulty, offering both the CW and MR response options would improve reliability more than either alone. Twenty-four subjects took a 20-item multiple-choice test under CW plus MR instructions. MR was used less than CW; 9 subjects used both options. Coefficient alphas computed on four scoring bases showed MR, alone, depressed reliability a little; CW, alone, depressed it a lot; and the two combined depressed it even more. It was concluded that these two previously successful special testing procedures cannot be combined to form an even better one. (Author)
- Notes:
- 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:
- 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:
- 1972
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