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Sociobiological hypothesis
The challenge hypothesis outlines the dynamic relationship between testosterone and aggression in mating contexts. It proposes that testosterone promotes
Challenge_hypothesis
Social interaction aiming at inflicting harm or unpleasantness
aggression even when given testosterone throughout their development. The challenge hypothesis outlines the dynamic relationship between plasma testosterone levels
Aggression
Hypothesis of language influencing thought
the Whorf hypothesis; the Sapir–Whorf hypothesis (/səˌpɪər ˈhwɔːrf/ sə-PEER WHORF); the Whorf–Sapir hypothesis; and Whorfianism. The hypothesis is disputed
Linguistic_relativity
Hypothesis in evolutionary psychology
The male warrior hypothesis (MWH) is an evolutionary psychology hypothesis by Professor Mark van Vugt which argues that human psychology has been shaped
Male_warrior_hypothesis
British historian (1889–1975)
literature Site analysing passages in Toynbee's work Arnold Toynbee, The Challenge Hypothesis (1934) Newspaper clippings about Arnold J. Toynbee in the 20th Century
Arnold_J._Toynbee
Differences between men and women as the perpetrators or victims of crime
in aggression and competition among males. The first one is the Challenge hypothesis which states that testosterone would increase during puberty thus
Sex_differences_in_crime
Hypothesis about first human presence in the Americas
hypothesis refers to the thesis that the Clovis culture represents the earliest human presence in the Americas about 13,000 years ago. The hypothesis
Clovis_First
Primary male sex hormone
of testosterone in aggression and competition. The first is the challenge hypothesis which states that testosterone would increase during puberty, thus
Testosterone
Interplay between observation, experiment, and theory in science
acquiring knowledge through careful observation, rigorous skepticism, hypothesis testing, and experimental validation. Developed from ancient and medieval
Scientific_method
Hypotheses of second-language acquisition
input hypothesis, the acquisition–learning hypothesis, the monitor hypothesis, the natural order hypothesis and the affective filter hypothesis. The input
Input_hypothesis
Species of fish
Oliveira, T.; Canàrio, A.V. M.; Oliveira, R.F. (2004). "A Test of the 'challenge Hypothesis' in Cichlid Fish: Simulated Partner and Territory Intruder Experiments"
Tropheus_moorii
Astrobiological hypothesis regarding early photosynthetic organisms
The Purple Earth hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007, that the earliest
Purple_Earth_hypothesis
American psychologist
Alfred M. Dufty, Jr., and Gregory F. Ball (December 1990). "The "Challenge Hypothesis": Theoretical Implications for Patterns of Testosterone Secretion
Gregory_F._Ball
Hypothesis in biblical criticism
The Farrer hypothesis (also called the L/M hypothesis, the Farrer–Goulder hypothesis and the Farrer–Goulder–Goodacre hypothesis) is a possible solution
Farrer_hypothesis
Hypothetical former Solar System planet
Exploded Planet Hypothesis 2000". Meta Research. Archived from the original on 2002-11-21. Van Flandern, Tom C. (2007). "The challenge of the exploded
Phaeton_(hypothetical_planet)
Creationist hypothesis
The Omphalos hypothesis is one attempt to reconcile the scientific evidence that the Earth is billions of years old with a literal interpretation of the
Omphalos_hypothesis
Hypothesis to explain the origins and composition of the Torah
The documentary hypothesis (DH) is one of the models used by biblical scholars to explain the origins and composition of the Torah (or Pentateuch, the
Documentary_hypothesis
Scientific hypothesis about Earth
The Gaia hypothesis (/ˈɡaɪ.ə/), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their
Gaia_hypothesis
Parental investment provided by a male to his own offspring
is not yet known. Bateman's principle Behavior Behavioral ecology Challenge hypothesis Cinderella effect Ecophysiology Evolutionary neuroscience Evolutionary
Paternal_care
Competition between women over a potential mate
(2006). "Testosterone and human aggression: an evaluation of the challenge hypothesis". Neuroscience & Biobehavioral Reviews. 30 (3): 319–345. doi:10.1016/j
Female intrasexual competition
Female_intrasexual_competition
decreases (through age or an immune challenge, for example), it will invest more in reproduction. This hypothesis is generally supported in animals, although
Terminal investment hypothesis
Terminal_investment_hypothesis
Hypothesis in intelligence research
Spearman's hypothesis is a conjecture that has played a historical role in debates surrounding race and intelligence. Its original formulation was that
Spearman's_hypothesis
Hypothesis for ancient human migrations to the Americas
The Solutrean hypothesis on the peopling of the Americas is the claim that the earliest human migration to the Americas began from Europe during the Solutrean
Solutrean_hypothesis
Misinterpretation of statistical significance
results: either the null hypothesis is rejected (which however does not prove that the null hypothesis is false), or the null hypothesis cannot be rejected
Misuse_of_p-values
hypothesis Agent-based computational economics Financial economics § Challenges and criticism Information cascade Noise trader Random walk hypothesis
Noisy_market_hypothesis
Animal behavior hypothesis
social brain hypothesis describes the capacity of animals to manoeuvre in complex social groups. This hypothesis posits that the challenges involved in
Machiavellian intelligence hypothesis
Machiavellian_intelligence_hypothesis
Provisional version pending further research
A working hypothesis is a hypothesis that is provisionally accepted as a basis for further ongoing research in the hope that a tenable theory will be produced
Working_hypothesis
Hypothesis of the formation of the Moon
The giant-impact hypothesis, sometimes called the Theia Impact, is an astrogeology hypothesis for the formation of the Moon first proposed in 1946 by Canadian
Giant-impact_hypothesis
Theory of second-language acquisition
The noticing hypothesis is a theory within second-language acquisition that a learner cannot continue advancing their language abilities or grasp linguistic
Noticing_hypothesis
Discrepancy of the lack of evidence for alien life despite its apparent likelihood
protect its independent cultural development, which resembles the zoo hypothesis proposed by John Ball. The Fermi question first appeared in print in a
Fermi_paradox
Concept in inferential statistics
statistical hypothesis testing, a result has statistical significance when a result at least as extreme would be very infrequent if the null hypothesis were
Statistical_significance
Economic theory that asset prices fully reflect all available information
The efficient-market hypothesis (EMH) is a hypothesis in financial economics that states that asset prices reflect all available information. A direct
Efficient-market_hypothesis
Hypothesis that emotional processes guide or bias decision-making
The somatic marker hypothesis, formulated by Antonio Damasio and associated researchers, proposes that emotional processes guide (or bias) behavior, particularly
Somatic_marker_hypothesis
Conundrum in sexual selection behaviour
with abundant genetic variation in condition. This is the genic capture hypothesis, which describes how a significant amount of the genome is involved in
Lek_paradox
1937 airship fire in the US
consistent with the "explosive" dope hypothesis. The TV show MythBusters explored the incendiary paint hypothesis. Their findings indicated that the aluminum
Hindenburg_disaster
Worldwide glaciation episodes during the Proterozoic eon
The Snowball Earth is a geohistorical hypothesis proposing that during one or more of Earth's icehouse climates, the planet's surface was nearly entirely
Snowball_Earth
Astronomical theory about the Solar System
The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well
Nebular_hypothesis
Medical hypothesis on development of immunity
In medicine, the hygiene hypothesis states that early childhood exposure to particular microorganisms (such as the gut flora and helminth parasites) protects
Hygiene_hypothesis
Hypothesis that human replicas elicit revulsion
human being and the emotional response to the object. The uncanny valley hypothesis predicts that an entity appearing almost human will elicit uncanny or
Uncanny_valley
Extinction of large animals at the end of the last Ice Age
inconsistencies between the current available data and the prehistoric overkill hypothesis. For instance, there are ambiguities around the timing of Australian megafauna
Late_Pleistocene_extinctions
Economic theory
Financial economics § Challenges and criticism Information cascade Noisy market hypothesis Random walk hypothesis § A non-random walk hypothesis Lo, Andrew W.
Adaptive_market_hypothesis
Asteroid impact hypothesis
The Alvarez hypothesis posits that the mass extinction of the non-avian dinosaurs and many other living things during the Cretaceous–Paleogene extinction
Alvarez_hypothesis
Proposed theory on the origins of COVID-19
A highly controversial hypothesis holds that SARS-CoV-2, the virus responsible for the COVID-19 pandemic, originated from a laboratory. The scientific
COVID-19_lab_leak_theory
Hypothesis that complex extraterrestrial life is improbable and extremely rare
In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the origin of life and the evolution of biological complexity, such as sexually
Rare_Earth_hypothesis
Hypothesized effect of blood lead levels on criminal behavior
The lead–crime hypothesis proposes that the sharp decline in crime rates in the industrialised world in the 1990s and beyond, after decades of increased
Lead–crime_hypothesis
Social role associated with gender or sex
more likely to express their sexual interest. This is known as the Challenge hypothesis. Various studies show different communication strategies with a feminine
Gender_role
Theory of Indo-European origin
The Steppe theory, also known as archaeologist Marija Gimbutas's Kurgan hypothesis, Kurgan theory, and Kurgan model, is the most widely accepted proposal
Steppe_theory
Heliotropic hypothesis is the process when social systems evolve toward the most positive images they hold of themselves. Society portal Psychology portal
Heliotropic_hypothesis
Statistical testing method
In statistical hypothesis testing, a two-sample test is a test performed on the data of two random samples, each independently obtained from a different
Two-sample_hypothesis_testing
Idea that everyone faces consequence as they deserve
The just-world fallacy, or just-world hypothesis, is the cognitive bias that assumes that "people get what they deserve" – that actions will necessarily
Just-world_fallacy
Relationship between mental illness and social class
Drift hypothesis, concerning the relationship between mental illness and social class, is the argument that illness causes one to have a downward shift
Drift_hypothesis
Album by Vangelis
Hypothesis is a studio album by the Greek electronic composer Vangelis, unofficially released in 1978. In May 1971 Vangelis had played several sessions
Hypothesis_(album)
Bias confirming existing attitudes
Peter Wason, as "a preference for information that is consistent with a hypothesis rather than information which opposes it." Confirmation biases are effects
Confirmation_bias
Theory of aggression
The frustration–aggression hypothesis, also known as the frustration–aggression–displacement theory, is a theory of aggression proposed by John Dollard
Frustration–aggression hypothesis
Frustration–aggression_hypothesis
Seven mathematical problems with a US$1 million prize for each solution
Navier–Stokes existence and smoothness, P versus NP problem, Riemann hypothesis, Yang–Mills existence and mass gap, and the Poincaré conjecture at the
Millennium_Prize_Problems
Proposal that humans evolved certain features due to filling a semi-aquatic niche
The aquatic ape hypothesis (AAH), also referred to as aquatic ape theory (AAT) or the waterside hypothesis of human evolution, postulates that the ancestors
Aquatic_ape_hypothesis
Obligation on a party in a dispute to provide sufficient warrant for their position
null hypothesis, then the null hypothesis is not rejected. In neither case is the null hypothesis or its alternative proven; the null hypothesis is tested
Burden_of_proof_(philosophy)
Hypothetical star orbiting the Sun, supposedly responsible for extinction events
galactic gravity plane working against the outer solar orbital plane (Shiva hypothesis), may be the cause of orbital perturbations of some outer Solar System
Nemesis_(hypothetical_star)
Speakers of Austronesian languages
Hmong–Mien and even Japanese-Ryukyuan into the larger Austric hypothesis. While the Austric hypothesis remains contentious, there is genetic evidence that at
Austronesian_peoples
Great Lakes freighter sunk in Lake Superior
Maritime authors Bishop and Stonehouse wrote that the shoaling hypothesis was later challenged on the basis of the higher quality of detail in Shannon's 1994 photography
SS_Edmund_Fitzgerald
Study of collection and analysis of data
model. A hypothesis is proposed for the statistical relationship between the two data sets, an alternative to an idealized null hypothesis of no relationship
Statistics
Archaeological theory
In archaeology, the Saxe–Goldstein hypothesis is a prediction about the relationship between a society's funerary practices and its social organization
Saxe–Goldstein_hypothesis
Hypothesis that some unidentified flying objects are created by extraterrestrial life
The extraterrestrial UFO hypothesis or extraterrestrial hypothesis (ETH), synonymous with interplanetary aircraft and alien UFO technologies, proposes
Extraterrestrial UFO hypothesis
Extraterrestrial_UFO_hypothesis
Concept in the philosophy of science
Bold hypothesis (or bold conjecture, the terms are used interchangeably) is a concept originally created by the liberal philosopher Karl Popper when he
Bold_hypothesis
Hypothesis about the evolution of human language
The cognitive tradeoff hypothesis argues that in the cognitive evolution of humans, there was an evolutionary tradeoff between short-term working memory
Cognitive_tradeoff_hypothesis
Greek myth and discredited archaeological theory
Dorian migration) is an ancient Greek myth and discredited archaeological hypothesis describing the movement of the Dorian people into the Peloponnese region
Dorian_invasion
Hypothetical Solar System planet
discoveries of objects including 2017 OF201 and 2023 KQ14 have challenged the hypothesis, as their orbits are not aligned with the other TNOs and would
Planet_Nine
Theory of Genesis authorship
Victor Hamilton states that Wiseman's hypothesis was "the first concerted attempt to challenge the hypothesis" of introductory colophons. Hamilton does
Wiseman_hypothesis
Concept in molecular genetics regarding misreading of genes
The ambush hypothesis is a hypothesis in the field of molecular genetics that suggests that the prevalence of “hidden” or off-frame stop codons in DNA
Ambush_hypothesis
Personality traits reflected in language
psychology, the lexical hypothesis (also known as the fundamental lexical hypothesis, lexical approach, or sedimentation hypothesis) generally includes two
Lexical_hypothesis
Clinical diagnostic tool
relaxing properties, elicits a challenge response similar to benzodiazepines has called into question the hypothesis that lorazepam may reverse catatonia
Lorazepam_challenge
Namesake of the Abrahamic religions
1970s, new arguments concerning Israel's past and the biblical texts challenged these views; these arguments can be found in Thomas L. Thompson's The
Abraham
The Hydrogen hypothesis is a model proposed by William F. Martin and Miklós Müller in 1998 that describes a possible way in which the mitochondrion arose
Hydrogen_hypothesis
Planetary hypothesis proposed by Johannes Kepler
Vicarious Hypothesis, or hypothesis vicaria, was a planetary hypothesis proposed by Johannes Kepler to describe the motion of Mars. The hypothesis adopted
Vicarious_Hypothesis
Autoimmune disease
provide more reliable measures. It is hypothesised that autoimmunity may play some role in euthyroid symptoms. Hypothesised mechanisms include the proposal
Hashimoto's_thyroiditis
Hypothesis that firms adjust financing decisions to exploit favourable market conditions
The market timing hypothesis, in corporate finance, is a theory of how firms and corporations decide whether to finance their investment with equity or
Market_timing_hypothesis
Infraclass of birds
within the paleognaths and partially refutes the Gondwana vicariance hypothesis (see below). The study looked at DNA sequences from 19 loci in 169 species
Palaeognathae
Ancestral origin theory
descended from a common segmented ancestor. The Articulata hypothesis is an alternative to the hypothesis that ecdysis (the shedding of outer cuticle) is a primitive
Articulata_(superphylum)
Theories on 1937 disappearance of American aviators
have been considered. Gardner Island Howland Island The Gardner Island hypothesis assumes that Earhart and Noonan, unable to find Howland Island, would
Speculation on the disappearance of Amelia Earhart and Fred Noonan
Speculation_on_the_disappearance_of_Amelia_Earhart_and_Fred_Noonan
Ancient Mediterranean peoples
from the Eastern Mediterranean in the late 2nd millennium BCE. They are hypothesised to have been one of the several ethnic groups of which the invading Sea
Peleset
Atmospheric electrical phenomenon
fractal aerogel hypothesis. M. I. Zelikin proposed (2006) an explanation (with a rigorous mathematical foundation) based on the hypothesis of plasma superconductivity
Ball_lightning
Canadian archaeologist
unsuccessfully challenging the Clovis First hypothesis in the 1980s. Only after his death were his challenges vindicated. Jacques Cinq-Mars began working
Jacques_Cinq-Mars
Mental illness with multiple personality states
symptoms. Psychiatrists August Piper and Harold Merskey have challenged the trauma hypothesis, arguing that correlation does not imply causation—the fact
Dissociative identity disorder
Dissociative_identity_disorder
Hypothesis about human childbirth
The obstetrical dilemma is a hypothesis to explain why humans often require assistance from other humans during childbirth to avoid complications, whereas
Obstetrical_dilemma
in the first decade of the 21st century challenged the conventional wisdom such as Efficient Market Hypothesis or Modern Portfolio Theory (MPT). Many of
Adaptive_Investment_Approach
Hypothesis that younger people are better at language acquisition
The critical period hypothesis is a hypothesis within the field of linguistics and second language acquisition that claims a person can achieve native-like
Critical_period_hypothesis
Void between celestial bodies
low Earth orbit or a simulated Martian environment. The lithopanspermia hypothesis suggests that rocks ejected into outer space from life-harboring planets
Outer_space
Country in Eastern Europe and North Asia
to Ancient Native Americans and Eastern Hunter-Gatherers. The Kurgan hypothesis places the Volga-Dnieper region of southern Russia and Ukraine as the
Russia
Theory of origin of Proto-Indo-Europeans
The Anatolian hypothesis, also known as the Anatolian theory or the sedentary farmer theory, first developed by British archaeologist Colin Renfrew in
Anatolian_hypothesis
Language family
legitimate scholarly arguments for both the Insular Celtic hypothesis and the P-/Q-Celtic hypothesis. Proponents of each schema dispute the accuracy and usefulness
Celtic_languages
Problem of circular reasoning in statistics
correct procedure is to test any hypothesis on a data set that was not used to generate the hypothesis. Testing a hypothesis suggested by the data can very
Testing hypotheses suggested by the data
Testing_hypotheses_suggested_by_the_data
Group of large game birds
redundant signal hypothesis also plays a crucial role in keeping this attention on the peacock's display. The redundant signal hypothesis explains that whilst
Peafowl
Largely abandoned theory about Jewish descent
A largely abandoned historical hypothesis postulated that Ashkenazi Jews were primarily, or to a large extent, descended from converts to Judaism among
Khazar hypothesis of Ashkenazi ancestry
Khazar_hypothesis_of_Ashkenazi_ancestry
Philosophical thought experiment
named after the physicist Ludwig Boltzmann (1844–1906), who published a hypothesis in 1896, prior to the Big Bang theory, that tried to account for the fact
Boltzmann_brain
Theory in evolutionary biology
The Escalation Hypothesis is an evolutionary theory in biology put forward by Geerat J. Vermeij. It states that organisms are in constant conflict with
Escalation_hypothesis
1968 shooting in Los Angeles, California
gunman, and concluded that there was little or no evidence to support this hypothesis. In 2004, CNN's senior writer Brad Johnson discovered a recording of Kennedy's
Assassination of Robert F. Kennedy
Assassination_of_Robert_F._Kennedy
Personality hypothesis which describes two contrasting personality types
if the broadness allowing them to do that is their inherent flaw. The hypothesis describes Type A individuals as outgoing, ambitious, rigidly organized
Type A and Type B personality theory
Type_A_and_Type_B_personality_theory
Kind of cognitive bias
oversimplified interpretations of frequency illusions. The natural frequency hypothesis posits that humans are evolutionarily adapted to process information in
Frequency_illusion
Island country in Southeast Asia
established the town of Singapura where he encountered the beast. The second hypothesis, drawn from Portuguese sources, postulates that this mythical story is
Singapore
Dubious evolutionary hypothesis
Winfrey mentioned the hypothesis in an interview with Dr. Oz in 2007. Since it was originally proposed, the hypothesis has been challenged, and it has been
Slavery hypertension hypothesis
Slavery_hypertension_hypothesis
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