An important but difficult problem in practice is to determine the number of components in a normal mixture model with unequal variances. When the likelihood ratio test statistic -2logλ is used, it is ...

How well can current assets cover current liabilities? Reviewed by Amy Drury The acid-test ratio (ATR), also commonly known as the quick ratio, measures the liquidity of a company by calculating how ...

An increasing concern of producers of educational assessments is fraudulent behavior during the assessment (van der Linden, 2009). Benefiting from item preknowledge (e.g., Eckerly, 2017; McLeod, Lewis ...