August 20, 2008 — A new study suggests that the risk for incident dementia may be predicted by within-person variability across neuropsychological tests, independent of actual performance on those ...

Comparing neuropsychological test results against age-adjusted norms is one way of determining whether an individual might be facing impending dementia. However, “normal” values can vary considerably, ...

A new study offers new evidence that the complexity of contemporary analytical methods in science contributes to the variability of research outcomes. A new Tel Aviv University-led study published on ...

It is a necessary condition that items and tests have variance and discrimination in the range of interest (population of observations) for which they are calibrated and selected. The basis for ...

A new Tel Aviv University-led study published on May 20 in Nature offers new evidence that the complexity of contemporary analytical methods in science contributes to the variability of research ...