error statistics
91standard error — noun 1. : standard deviation 2. : standard deviation divided by the square root of the number of items in a sample tested : the standard deviation of the sample mean * * * ˌstandard ˈerror 7 [standard error] …
92Validity (statistics) — In psychology, validity has two distinct fields of application. The first involves test validity, a concept that has evolved with the field of psychometrics but which textbooks still commonly gloss over in explaining that it is the degree to… …
93Per-comparison error rate — In statistics, per comparison error rate (PCER) is the probability of a result in the absence of any formal multiple hypothesis testing correction.[1] Typically, when considering a result under many hypotheses, some tests will give false… …
94standard error — (of a mean) the extent to which the means of several different samples would vary if they were taken repeatedly from the same population. Differences between means are said to have statistical significance when they are greater than twice the… …
95Standard error — In statistics, a measure of the possible error in an estimate. The New York Times Financial Glossary …
96standard error — In statistics, a measure of the possible error in an estimate. Plus or minus 2 standard errors usually provides a 95% confidence interval. Bloomberg Financial Dictionary …
97cumulative error — noun Statistics an error that increases with the size of the sample revealing it …
98random error — noun Statistics an error in measurement caused by factors which vary from one measurement to another …
99systematic error — noun Statistics an error whose effect is not reduced when observations are averaged …
100sampling error — Any difference between the true parameters of a population and a conclusion about these parameters based on a sample of the population. Sampling errors are of two kinds. The first, which is inevitable, arises from the laws of statistics and… …
