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Sphericity - Wikipedia, the free encyclopedia
Sphericity is a measure of how spherical (round) an object is. As such, it is a specific example of a compactness measure of a shape. Defined by Wadell in 1935, the sphericity, \Psi , of a particle...
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Mauchly's sphericity test - Wikipedia, the free encyclopedia
Mauchly'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. Sphericity relates to the equality...
en.wikipedia.org/wiki/Mauchly's_sphericity_test |
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BPS-MSC Newsletter 6 (1) Page 13; A Bluffer’s Guide to ... Sphericity; Andy Field; University of Sussex; The use of repeated measures, where the same subjects are tested under a number of conditions, has numerous practical and statistical benefits.
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Sphericity means that data are uncorrelated; violations of sphericity require strict homogeneity of variance. If there are only 2 levels of a factor, this problem of correlation doesn't arise; but if there are 3 or more levels you have to guard against it.
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Roundness, Surface Features, and Sphericity of Grains ... Quantitatively sphericity may be expressed as the Wadell Sphericity: ... Sphericity may also be approximated by: where L, I, and S are the long, intermediate and short axes of the grain.
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Latest news, weather, health, business, sports, science, money, entertainment, world news, elections, weird news and more. ... Echoes of Iraq as UN Slashes Staff in Afghanistan ... WASHINGTON (Nov. 5) -- The United Nations portrayed its decision to cut its international staff in Kabul by more than half in the wake of a...
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Hutchinson encyclopedia article about sphericity. sphericity. Information about sphericity in the Hutchinson encyclopedia. ... (redirected from sphericity)
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Sphere of Hip Hop - Read Listen Shop. News, articles, album reviews, interviews, MP3 downloads, podcasts, online music store with CDs vinyl records digital downloads and clothing. ... What's new from ILLECT Recordings? ... MTV accepted the new Cas Metah video! They are plugging it into several spots in their programming...
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The Majestix Golf Ball Compression and Sphericity Tester is the one and only hand held way of getting accurate, consistent, results. ... Golf Ball Compression and Sphericity Tester ... In a nutshell, compression is the measure of how soft a ball is (80 being softest and 100 hardest). And Sphericity is the roundness of the ball.
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