sampling interpreting
11Academy of Natural Sciences — Infobox Museum |name = The Academy of Natural Sciences | |imagesize = 280 |latitude = 39.9570 |longitude = 75.1714 |established = 1812 |location = Philadelphia |type = Natural History Museum |director = William Yancey Brown |collection = 17+… …
12Mauchly's sphericity test — is a statistical test used to validate repeated measures factor ANOVAs. The test was introduced by ENIAC co inventor John Mauchly in 1940.[1] Contents 1 What is sphericity? 2 Formulation of the test …
13psychological testing — Use of tests to measure skill, knowledge, intelligence, capacities, or aptitudes and to make predictions about performance. Best known is the IQ test; other tests include achievement tests designed to evaluate a student s grade or performance… …
14Survey methodology — Sociology …
15Videoconferencing — See also: List of video telecommunication services and product brands A Tandberg T3 high resolution telepresence room in use (2008) …
16Lancet surveys of Iraq War casualties — The Lancet , one of the oldest scientific medical journals in the world, published two peer reviewed studies on the effect of the 2003 invasion of Iraq and subsequent occupation on Iraqi mortality. The first was published in 2004; the second (by… …
17Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …
18Linear regression — Example of simple linear regression, which has one independent variable In statistics, linear regression is an approach to modeling the relationship between a scalar variable y and one or more explanatory variables denoted X. The case of one… …
19Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …
20Research — This article is about the search for knowledge. For the suburb of Melbourne, Australia, see Research, Victoria. For the Wikipedia policy, see Wikipedia:Original research. For information on using Wikipedia for research, see Wikipedia:Researching… …
