random effect

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• Effect size — In statistics, an effect size is a measure of the strength of the relationship between two variables in a statistical population, or a sample based estimate of that quantity. An effect size calculated from data is a descriptive statistic that… …   Wikipedia

• Random effects model — In statistics, a random effect(s) model, also called a variance components model is a kind of hierarchical linear model. It assumes that the data describe a hierarchy of different populations whose differences are constrained by the hierarchy. In …   Wikipedia

• Random assignment — or random placement is an experimental technique for assigning subjects to different treatments (or no treatment). The thinking behind random assignment is that by randomizing treatment assignment, then the group attributes for the different… …   Wikipedia

• Random Quest — is a science fiction short story, which is also a love story, by John Wyndham. It was included in his 1961 collection Consider Her Ways and Others. It has been dramatised three times, twice under its original name and once as Quest for Love .… …   Wikipedia

• Random number table — Random number tables have been used in statistics for tasks such as selected random samples. This was much more effective than manually selecting the random samples (with dice, cards, etc.). Nowadays, tables of random numbers have been replaced… …   Wikipedia

• random — ran‧dom [ˈrændəm] adjective 1. random sample/​ check/​test etc a sample, check etc in which things or people are chosen without any particular reason or pattern so that they will include a typical mixture of the larger group they represent: • The …   Financial and business terms

• Random orbital sander — Random orbit sanders, also called Dual Action or D.A. sanders (referring to the rotation of the disk and the head) are hand held power sanders where the action is a random orbit. They were first introduced in the early 1990s and quickly became… …   Wikipedia

• Random Lake High School — is a public high school for grades 9 12. It is located in Random Lake, Wisconsin on the western side of town and serves approximately 400 students in the area of Southern Sheboygan County and Northern Ozaukee County. The current site of the… …   Wikipedia

• Random close pack — Random close packing (RCP) is an empirical parameter used to characterize the maximum volume fraction of solid objects obtained when they are packed randomly. For example, when a solid container is filled with grain, shaking the container will… …   Wikipedia

• Random dopant fluctuation — (RDF) is a form of process variation resulting from variation in the implanted impurity concentration. In MOSFET transistors, RDF in the channel region can alter the transistor s properties, especially threshold voltage. In newer process… …   Wikipedia

• Random checkpoint — Mexican troops operating in a random checkpoint A random checkpoint (also known as a flying checkpoint , mobile checkpoint or hasty checkpoint ) is a military and police tactic involving the set up of a hasty roadblock primarily by mobile truck… …   Wikipedia