A group acts as a social environment of individuals: a flock of nine common cranes.
Many animals, including humans, tend to live in groups, herds, flocks, bands, packs, shoals, or colonies (hereafter: groups) of conspecific individuals. The size of these groups, as expressed by the number of people/etc in a group such as eight groups of nine people in each one, is an important aspect of their social environment. Group size tend to be highly variable even within the same species, thus we often need statistical measures to quantify group size and statistical tests to compare these measures between two or more samples. Group size measures are notoriously hard to handle statistically since groups sizes typically follow an aggregated (right-skewed) distribution: most groups are small, few are large, and a very few are very large.
Statistical measures of group size roughly fall into two categories.
and 25 Related for: Group size measures information
statistical measures to quantify groupsize and statistical tests to compare these measures between two or more samples. Groupsizemeasures are notoriously...
Bra size (also known as brassiere measurement or bust size) indicates the size characteristics of a bra. While there is a number of bra sizing systems...
or inches. The sizes with which humans tend to be most familiar are body dimensions (measures of anthropometry), which include measures such as human height...
g., the difference between group means or the unstandardized regression coefficients). Standardized effect sizemeasures are typically used when: the...
Human penises vary in size on a number of measures, including length and circumference when flaccid and erect. Besides the natural variability of human...
therefore be especially imprecise measures of class size. Although student-teacher ratio does not measure class size, some important studies and surveys...
The size of the brain is a frequent topic of study within the fields of anatomy, biological anthropology, animal science and evolution. Measuring brain...
Repeated measures design is a research design that involves multiple measures of the same variable taken on the same or matched subjects either under different...
smallest measure is multiplied by two, or in quadruple versions where both measures have been doubled. The international business card has the size of the...
model of trade Greenwood statistic Gretl Group family Group method of data handling GroupsizemeasuresGrouped data Grubbs's test for outliers Guess value...
"Comparing radio-tracking and visual detection methods to quantify groupsizemeasures". European Journal of Ecology. 1 (2): 1–4. doi:10.1515/eje-2015-0011...
Statistics in Medicine Bioinformatics Epidemiological method Epidemiology Groupsizemeasures Health indicator Mathematical and theoretical biology Centre for...
more common measures of alcoholic "drink" and "pint". There is a legally defined maximum size of a serving in some jurisdictions. The size of a "single"...
the groupsize can be geometrically considered a very short length of arc, and the distance to the target as the radius. By measuring the groupsize in...
a relative brain sizemeasure that is defined as the ratio between observed and predicted brain mass for an animal of a given size, based on nonlinear...
cosmological distance measures. 'Distance measures in cosmology' explains in detail how to calculate the different distance measures as a function of world...
Some measures that are commonly used to describe a data set are measures of central tendency and measures of variability or dispersion. Measures of central...
is a measure of effect size. It is the mean divided by the standard deviation of a difference between two random values each from one of two groups. It...
standard for size labelling of clothes, formally known as the EN 13402 Size designation of clothes, is a European standard for labelling clothes sizes. The standard...
cameras. Sensor size is often expressed as optical format in inches. Other measures are also used; see table of sensor formats and sizes below. Lenses produced...
different treatment groups, there may be different sample sizes for each group. Sample sizes may be chosen in several ways: using experience – small samples...
project, which had undergone changes in size and specifications since it was first proposed. In 2007, Tata Group joined forces with a Tanzanian company...
43 kg [95 lb] specimen). Cephalopod size can be quantified in various ways. Some of the most common sizemeasures are covered below. The following four...
(69–70 in), it measures 60–70 cm (24–28 in) in length and weighs 0.8–1.3 kg (1.8–2.9 lb). The largest waterfowl species by average size is the trumpeter...
scientists. Dinosaurs show some of the most extreme variations in size of any land animal group, ranging from tiny hummingbirds, which can weigh as little as...
Global Information