When a project is running exactly as predicted, there is no time variance to worry about. When events are happening ahead of schedule or behind schedule, you have a variance, which could pose ...

Welcome back to our series of articles sponsored by Intel – “Ask a Data Scientist.” Once a week you’ll see reader submitted questions of varying levels of technical detail answered by a practicing ...

This is a preview. Log in through your library . Abstract The essay describes a new way to evaluate variation among simulations through six distinct categories. The six points involve the content of ...

When contextual features of test-taking environments differentially affect item responding for different test-takers and these features vary across test administrations, they may cause differential ...

Inflation-type weighted estimators for variance components can be badly biased. Modified weighted estimators suggested in the literature are also badly biased for certain sampling designs. We propose ...