Revised standards for statistical evidence

Revised standards for statistical evidence.

Recent advances in Bayesian hypothesis testing have led to the development of uniformly most powerful Bayesian tests, which represent an objective, default class of Bayesian hypothesis tests that have the same rejection regions as classical significance tests. Based on the correspondence between these two classes of tests, it is possible to equate the size of classical hypothesis tests with evi...

Revised evidence for statistical standards.

In (1), Johnson proposes replacing the usual p = 0.05 standard for significance with the more stringent p = 0.005. This might be good advice in practice but we remain troubled by Johnson’s logic because it seems to dodge the essential nature of any such rule, that it expresses a tradeoff between the risks of publishing misleading results and of important results being left unpublished. Ultimate...

The need for revised standards for skinfold thickness in infancy.

Skinfold standards provide a useful indication of subcutaneous fat. To evaluate skinfold thickness of 252 Cambridge infants over the first 2 years of age, SD scores relative to the Tanner standards were calculated, taking account of skewness in the standards. Cambridge SD scores were low, varying according to age from -1.2 to -1.8 for triceps and -0.6 to -1.2 for subscapular skinfolds. The Tann...

Videomimicography: the standards of normal revised.

BACKGROUND Studies aiming to objectively evaluate facial movements have focused on the technique of measurement, whereas the most pertinent measurements of basic facial movements have not been well characterized. OBJECTIVE To determine the best normal measures of 5 basic facial movements in healthy patients. METHODS In 5 healthy subjects, 11 facial landmarks were placed on the face, and 5 m...

Revised timeline for implementation of the Joint Commission's new and revised diagnostic imaging standards.