Linking across forms in vertical scaling under the common-item nonequvalent groups design
The purposes of this dissertation are to compare how different the resulting proficiency estimates are by using two scale maintenance approaches, the horizontal and vertical approaches, in supporting scale stability across grade within form, within grade across forms, and across grades and across fo...
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| Format: | Others |
| Language: | English |
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University of Iowa
2013
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| Online Access: | https://ir.uiowa.edu/etd/2655 https://ir.uiowa.edu/cgi/viewcontent.cgi?article=4784&context=etd |