Showing 1 - 2 of 2 Research Library Publications

Awareness of Diagnosis Predicts Changes in Quality of Life in Individuals with Mild Cognitive Impairment and Mild Stage Dementia

Posted: | Shana D. Stites, Jonathan D. Rubright, Kristin Harkins, Jason Karlawish

International Journal of Geriatric Psychiatry: Volume 38 - Issue 6, e5939

 

This observational study examined how awareness of diagnosis predicted changes in cognition and quality of life (QOL) 1 year later in older adults with normal cognition and dementia diagnoses.

Category:Health Professions

Quantifying the Bias of Non-linear Equating and Score Transformations

Posted: | Matthias von Davier, Brian Clauser

Essays on Contemporary Psychometrics: Pages 163-180

 

This paper shows that using non-linear functions for equating and score transformations leads to consequences that are not commensurable with classical test theory (CTT). More specifically, a well-known theorem from calculus shows that the expected value of a non-linearly transformed variable does not equal the transformed expected value of this variable.

Category:Assessment-Oriented Research, Scoring