Preparing for Your Test. For cholesterol and glucose tests, you must fast for at least 8 hours prior to having your blood drawn, unless your doctor tells you otherwise. Fasting means no eating or drinking for at least 8 hours before the test, except water. After your blood is drawn, you may resume your regular diet.
role expectation (social role expectation) (noun) The way a role ought to be performed as determined by a group or society. Example: A university student is expected to complete assignments on time and come to class prepared. The terms role expectation and social role expectation are used interchangeably in a sociological context. In contrast to role expectation, role performance is the actual behavior and expression of an individual occupying a role.
empirical probability. A statistical model whereby the likelihood of an event happening is supported by market data. The calculation is expressed as a ratio between the number of times an event occurs to the number of possible times it could occur. Also called posterior probability.