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Topics referred to by the same term
Variability is how spread out or closely clustered a set of data is. Look up variability in Wiktionary, the free dictionary. Variability may refer to:
Variability
Hypothesis that human males have more variance in certain traits compared to females
The variability hypothesis, also known as the greater male variability hypothesis, is the hypothesis that human males generally display greater variability
Variability_hypothesis
Variation in the time intervals between heartbeats
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in
Heart_rate_variability
Topics referred to by the same term
Solar variability refers to changes in solar activity, such as: Solar variation, the change in the amount of radiation emitted by the Sun (see Solar radiation)
Solar_variability
Spatial variability occurs when a quantity that is measured at different spatial locations exhibits values that differ across the locations. Spatial variability
Spatial_variability
cardiac beat. Beat-to-beat fluctuations, known as photoplethysmogram variability (PPGV) are found in the signal baseline and amplitude which reflects
Photoplethysmogram variability
Photoplethysmogram_variability
Statistical property quantifying how much a collection of data is spread out
In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed. Common examples
Statistical_dispersion
Change in the statistical distribution of climate elements for an extended period
Climate variability includes all the variations in the climate that last longer than individual weather events, whereas the term climate change only refers
Climate variability and change
Climate_variability_and_change
Difference in DNA among individuals or populations
While many factors can cause genetic variability, some factors can also decrease genetic variability. Species variability refers to the observable differences
Genetic_variation
Global climate phenomenon
climate change science, ENSO is known as one of the internal climate variability phenomena. Future trends in ENSO due to climate change are uncertain
El_Niño–Southern_Oscillation
Formula for measuring financial risk
(also known as the Sharpe index, the Sharpe measure, and the reward-to-variability ratio) measures the performance of an investment such as a security or
Sharpe_ratio
Measure of consensus in ratings given by multiple observers
"the proportion of variance of an observation due to between-subject variability in the true scores". The range of the ICC may be between 0.0 and 1.0
Inter-rater_reliability
Closeness of agreement between successive measurements
causes test–retest variability. Such variability can be caused by, for example, intra-individual variability and inter-observer variability. A measurement
Repeatability
Long-term weather pattern of a region
typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions
Climate
Range of possible values for any characteristic of human beings
Human variability, or human variation, is the range of possible values for any characteristic, physical or mental, of human beings. Frequently debated
Human_variability
Ecological theory
The Spectral Variability Hypothesis (SVH) states that spatial variability in the reflectance of vegetated surfaces relates to plant species richness. It
Spectral variability hypothesis
Spectral_variability_hypothesis
Relative measure of dispersion expressed as the ratio of standard deviation to the mean
{\displaystyle CV={\frac {\sigma }{\mu }}.} It shows the extent of variability in relation to the mean of the population. The coefficient of variation
Coefficient_of_variation
Concept in formal semantics
Quantificational variability effect (QVE) is the intuitive equivalence of certain sentences with quantificational adverbs (Q-adverbs) and sentences without
Quantificational variability effect
Quantificational_variability_effect
QT interval variability (QTV) refers to the physiological phenomenon of beat-to-beat fluctuations in QT interval of electrocardiograms. Increased QTV
QT_interval_variability
Electrical power generation from wind
other generation plants and daily changes in electrical demand, but the variability of intermittent power sources such as wind power is more frequent than
Wind_power
Checking of an electric circuit to see if current flows
In electronics, a continuity test is the checking of an electric circuit to see if current flows (that it is in fact a complete circuit). A continuity
Continuity_test
2021 book by Daniel Kahneman, Olivier Sibony, and Cass Sunstein
decision-making. The authors define noise in human judgment as "undesirable variability in judgments of the same problem" and focus on the statistical properties
Noise: A Flaw in Human Judgment
Noise:_A_Flaw_in_Human_Judgment
Intense physical sensation of sexual release
stroke. There is some research suggesting that greater resting heart rate variability is associated with orgasms through penile-vaginal intercourse without
Orgasm
Variety and variability of life forms
Biodiversity is the variability of life on Earth. It can be measured on various levels, for example, genetic variability, species diversity, ecosystem
Biodiversity
In cell biology, single-cell variability occurs when individual cells in an otherwise similar population differ in shape, size, position in the cell cycle
Single-cell_variability
Measurement of blood oxygen saturation
is derived manually from monitor pixels. Pleth variability index (PVI) is a measure of the variability of the perfusion index, which occurs during breathing
Pulse_oximetry
Class of renewable energy sources
plants. Intermittency or variability is the extent to which a power source fluctuates. This has two aspects: a predictable variability, such as the day-night
Variable_renewable_energy
The Tropical Atlantic Variability (TAV) is influenced by internal interaction and external effects. TAV can be discussed in different time scales: seasonal
Tropical_Atlantic_Variability
Genetic diversity in human populations
this variation accounts for a small portion (~15%) of human genome variability. The majority of variation exists within the members of each human population
Human_genetic_variation
Country in West Africa
and aims to strengthen the capabilities of stakeholders to control the variability of food products and supplies at local and national levels. Lastly, the
Burkina_Faso
Climate cycle that affects the surface temperature of the North Atlantic
Oscillation (AMO), also known as Atlantic Multidecadal Variability (AMV), is the theorized variability of the sea surface temperature (SST) of the North Atlantic
Atlantic multidecadal oscillation
Atlantic_multidecadal_oscillation
Psychological effect that people learn more by spreading studying out in time
holds that variability surrounding context is responsible for the spacing effect, not only semantic variability. To test the encoding variability theory,
Spacing_effect
Statistical error
In statistics, sampling errors are incurred when the statistical characteristics of a population are estimated from a subset, or sample, of that population
Sampling_error
Star in the cluster NGC 2547
Simulations of giant impacts were done to re-create the short-term variability of ID8. As the material orbits the star it will pass through the collision
2MASS_J08090250−4858172
Star whose brightness fluctuates, as seen from Earth
founded in 1890. The most common kinds of variability involve changes in brightness, but other types of variability also occur, in particular changes in the
Variable_star
Design of experiments to collect similar contexts together
These variables are chosen carefully to minimize the effect of their variability on the observed outcomes. There are different ways that blocking can
Blocking_(statistics)
Pattern of thunderstorms and rainfall
Convergence Zone Variability in the Gulf of California moisture surges None of these factors can perfectly predict the variability. These factors are
North_American_monsoon
Difference between the anatomical structures
An anatomical variation, anatomical variant, or anatomical variability is a presentation of body structure with morphological features different from
Anatomical_variation
Area of scientific research
factors. It has also been hypothesized that there is slightly higher variability in male scores in certain areas compared to female scores, leading to
Sex differences in intelligence
Sex_differences_in_intelligence
Sleep disorder
often used to recover sleep debt, may result in greater sleep timing variability across the week. This irregularity, rather than catch-up sleep itself
Social_jetlag
Pregnancy monitoring test
FHR variability, or an absence of FHR variability, does not reliably predict fetal acidemia or hypoxia; lack of moderate baseline FHR variability may
Cardiotocography
is an oceanographic and meteorological phenomenon affecting climate variability over the Pacific basin and beyond on interdecadal time scales. The term
Interdecadal Pacific oscillation
Interdecadal_Pacific_oscillation
Star in the constellation Reticulum
hours and showed strong variability in all 4 light curves. The researchers claim it is the perfect candidate for variability study with JWST. WISE 0359−5401
WISE_0359−5401
Statistical technique for estimating sampling variability
replication (BRR) is a statistical technique for estimating the sampling variability of a statistic obtained by stratified sampling. Select balanced half-samples
Balanced_repeated_replication
Recurring pattern of climate variability
oscillation (PDO) is a robust, recurring pattern of ocean-atmosphere climate variability centered over the mid-latitude Pacific basin. The PDO is detected as
Pacific_decadal_oscillation
There are no world records in rowing due to the huge variability that weather conditions can have on times. Instead, there are world best times, which
List of world best times in rowing
List_of_world_best_times_in_rowing
Tropical atmosphere element of variability
oscillation (MJO) is the largest element of the intraseasonal (30- to 90-day) variability in the tropical atmosphere. It was discovered in 1971 by Roland Madden
Madden–Julian_oscillation
Concept that permeates much of inferential statistics and descriptive statistics
deviations is an unscaled, or unadjusted measure of dispersion (also called variability). When scaled for the number of degrees of freedom, it estimates the
Partition_of_sums_of_squares
Brown dwarf or planet colder than 500 Kelvin
1405+5534 (Y0) and its variability is modelled with a single bright spot. Another variable Y dwarf is WISE 1738+2732 (Y0) and its variability is explained with
Y_dwarf
Field of scientific study
between solar variability and climate. Arctic paleoclimate, in particular, has linked total solar irradiance variations and climate variability. A 2001 paper
Solar_activity_and_climate
Learning strategy
and spaced fashions, hence eliminating the spacing effect. Encoding variability and assumes the benefits of spacing appear because spaced presentations
Distributed_practice
Form of distribution marketing
to suppliers tend to have a larger variability than sales to buyers, which results in an amplified demand variability upstream. In part, this results in
Bullwhip_effect
optimisation whereby a system is made less sensitive to the effects of random variability, or noise, that is present in that system's input variables and parameters
Robustification
Research study variability considered during meta-analytic, systematic reviews
studies would hence be homogeneous). Study heterogeneity denotes the variability in outcomes that goes beyond what would be expected (or could be explained)
Study_heterogeneity
Climatic cooling after the Medieval Warm Period (16th–19th centuries)
variations in Earth's orbit and axial tilt (orbital forcing), inherent variability in global climate, and decreases in the human population (such as from
Little_Ice_Age
Long-term annual pattern of a river's discharge
establish a typical annual discharge regime for rivers with high interannual variability in monthly discharge and/or significant changes in the catchment's characteristics
Discharge_regime
NASA mission, launched in 2010 to GSO
magnetic activity in order to understand solar variability and its effects. The Extreme Ultraviolet Variability Experiment (EVE) measures the Sun's extreme
Solar_Dynamics_Observatory
Perception of out-group members as being similar to each other
diverse". Perceivers tend to have impressions about the diversity or variability of group members around those central tendencies or typical attributes
Out-group_homogeneity
Human retrovirus, cause of AIDS
therapies. HIV differs from many viruses in that it has very high genetic variability. This diversity is a result of its fast replication cycle, with the generation
HIV
American anthropologist and archaeologist
dissertation was titled "Dental Analysis of Classic Period Population Variability in the Maya Area". Scherer's first academic appointment was as Assistant
Andrew_Scherer
Workability and cooperation in producing a measurable output
parts of process capability are: Measure the variability of the output of a process, and Compare that variability with a proposed specification or product
Process_capability
Interactions that create Earth's climate
carbon and nitrogen cycles. The climate system can change due to internal variability and external forcings. These external forcings can be natural, such as
Climate_system
Czech seismologist and geophysicist (1928–2021)
GEOSTAS, which deals with astrophysics, on a prediction prognosis of the variability of the times of the origins and manifestations of the magnitudes of the
Břetislav_Staš
Quasar in the Hercules constellation
constellation of Hercules. It is noted for hosting a superluminal jet and its variability in almost all wave bands. 3C 345 has an active galactic nucleus that
3C_345
American scientist and researcher
research, where he used deterministic theory to understand the cyclic variability in spark ignition engines. He worked with Ford Motor Company and Oak
Johney_Green
Component of the World Climate Research Programme
CLIVAR (climate and ocean: variability, predictability and change) is one of six projects of the World Climate Research Programme. Its purpose is to describe
CLIVAR
Warm weather period, 250 BC to AD 400
Dendrochronological evidence from wood found at the Parthenon shows variability of climate in the 5th century BC, which resembles the modern pattern
Roman_Warm_Period
Flow of water from the Indian Ocean to the Atlantic
J. R. E. (November 2008). "Agulhas leakage dynamics affects decadal variability in Atlantic overturning circulation". Nature. 456 (7221): 489–492. Bibcode:2008Natur
Agulhas_Leakage
Discipline within engineering design
primarily with the consideration and minimization of the effects of random variability upon the performance of an engineering system during the design phase
Probabilistic_design
Presence of greater variability in a data set than would be expected
In statistics, overdispersion is the presence of greater variability (statistical dispersion) in a data set than would be expected based on a given statistical
Overdispersion
Tropical atmospheric circulation feature
heaviest rains are located. Shifts in the ITCZ associated with the seasonal variability of the Hadley circulation cause monsoons. The sinking branches of the
Hadley_cell
Climate scientist (born 1968)
Retrieved September 30, 2026. Holland, Marika M (1997). Climate change and variability in a single column coupled sea ice/ocean mixed layer model (Thesis).
Marika_Holland
Graphical representations of the variability of data
Error bars are graphical representations of the variability of data and used on graphs to indicate the error or uncertainty in a reported measurement
Error_bar
Red supergiant star in the constellation Orion
period followed; then in 1849, Herschel noted another short cycle of variability, which peaked in 1852. Later observers recorded unusually high maxima
Betelgeuse
Monsoon in Indian subcontinent
theories have been proposed to explain the origin, process, strength, variability, distribution, and general vagaries of the monsoon, but understanding
Monsoon_of_South_Asia
Medical condition
increased general [body] and [torso] movement and increased variability of strides. The variability can manifest as a combination of differences in the length
Gait_deviations
Binary star in the constellation Triangulum
is an eclipsing binary variable, first identified by the Northern Sky Variability Survey survey in 2004 and given its variable-star designation BX Trianguli
BX_Trianguli
Scientific study of climate
period of time. The main topics of research are the study of climate variability, mechanisms of climate changes and modern climate change. This topic
Climatology
Statistical hypothesis test
between-group variability within-group variability . {\displaystyle F={\frac {\text{between-group variability}}{\text{within-group variability}}}.} The "explained
F-test
Pressure exerted by circulating blood upon the walls of arteries
pressure varies over longer time periods (months to years) and this variability predicts adverse outcomes. Blood pressure also changes in response to
Blood_pressure
Astronomical observatory in Chile
Nicolaia. In 2009, the telescope was dedicated to the LaSilla–Quest Variability Survey, by Yale's Department of Astronomy, and has since been used for
La_Silla_Observatory
Difference between males and females
differences in math skills among the general population. Differences in variability of IQ scores have been observed in studies, with more men falling at
Sex_differences_in_humans
Latter part of the menstrual cycle
approximately 14 days, but studies now suggest that there can be wide variability in luteal phase lengths not just from person to person, but from cycle
Luteal_phase
Subdivision of pharmacology
development. A major focus of pharmacometrics is to understand variability in drug response. Variability may be predictable (e.g., due to differences in body weight
Pharmacometrics
British climate scientist
climate modelling, and completed her PhD in 2000 on the effects of solar variability on climate using atmospheric models of the troposphere and stratosphere
Alice_Larkin
Triple star system in the constellation Sagittarius
pattern. Photometric variability of the star was reported by Paul A. Crowther, in 1997. Large amplitude quasi-periodic variability was reported by Taichi
WR_104
Meteorological phenomenon
terrain-induced convective systems, moisture recycling, and spatiotemporal variability of land cover and albedo. The South Pacific convergence zone (SPCZ) is
Intertropical Convergence Zone
Intertropical_Convergence_Zone
Binary star in the constellation Canes Venatici
26 magnitudes. The exact magnitudes vary somewhat due to the inherent variability of the secondary. The General Catalogue of Variable Stars lists magnitude
RS_Canum_Venaticorum
Rare disease which results in brain inflammation
time, seizures, decreased breathing, and blood pressure and heart rate variability typically occur. In some cases, patients may develop catatonia. About
Anti-NMDA receptor encephalitis
Anti-NMDA_receptor_encephalitis
High pressure mass of cold dry air over northeastern Eurasia
scientific studies of the Siberian High have been late in coming, though variability of its behavior was observed as early as the 1960s. However, recent studies
Siberian_High
Rhythmic division of time in spoken language
However, when viewed as a matter of degree, relative differences in the variability of syllable duration across languages have been found. Three alternative
Isochrony
Large self-illuminated object in space
properties—including mass, age, metallicity (chemical composition), variability, distance, and motion through space—by carrying out observations of a
Star
Gaining awareness of biological processes
rate at that moment. The statistical variability of that interbeat interval is what we call heart rate variability. The ECG method is more accurate than
Biofeedback
Drive to eat for pleasure rather than sustenance
increased hedonic hunger susceptibility to environmental food cues. Genetic variability may influence hedonic hyperphagia. Variation in hedonic hunger levels
Hedonic_hunger
Physical or emotional intimacy
necessarily monogamous or sexual, and there is wide social and cultural variability in the norms and practices of intimacy between people. The course of
Intimate_relationship
Attraction on the basis of sexual desire
lesbian or counted as such. Another study was done to investigate the variability in sexual preferences throughout human lifespan. Members of the LGBTQ+
Sexual_attraction
Term in evolutionary biology and behavioural ecology
There are multiple proposed explanations for the behaviour, but its variability and broad taxonomic occurrences result in simultaneously plausible theories
Helpers_at_the_nest
Difference of a temperature from a reference value
temperatures than another of +3 °C from a region with normally large variability. For this purpose, anomalies are often shown as 'standardized anomalies'
Temperature_anomaly
American microbiologist and educator (1906–2001)
reliability of fermentation and proteolytic reactions and was titled "The Variability of Caseolytic and Sucrose-Fermenting Characteristics of Certain Bacteria
Delaphine_Grace_Wyckoff
Rate or speed at which a language is spoken
Setter; Greasley; Horton (1995). "Emotional stress and speech tempo variability". Proceedings of the ESCA/NATO Workshop on Speech Under Stress: 13–15
Speech_tempo
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