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Principal Investigator  
Principal Investigator's Name: Brandy Callahan
Institution: University of Calgary
Department: Psychology
Proposed Analysis: This study will compare the sensitivity, specificity and accuracy of published versus sample-based norms to detect early dementia in the Uniform Data Set (UDS). Raw UDS scores will be standardized using published norms (P-scores), and again using data from ADNI's healthy control sample (S-scores). The results will inform clinicians and researchers about how the source of norms impacts cognitive outcomes and disease prevalence rates in their samples.
Additional Investigators