Linking across forms in vertical scaling under the common-item nonequvalent groups design

@inproceedings{Wang2016LinkingAF,
  title={Linking across forms in vertical scaling under the common-item nonequvalent groups design},
  author={Xuan Wang},
  year={2016}
}
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 forms, and to thus investigate under which conditions of within-grade variability patterns and examinee sample characteristics one approach is preferable to the other. Since there is no universally… CONTINUE READING