operational hypothesis
1Hypothesis — A hypothesis (from Greek polytonic|ὑπόθεσις ) consists either of a suggested explanation for a phenomenon (an event that is observable) or of a reasoned proposal suggesting a possible correlation between multiple phenomena. The term derives from… …
2Operational definition — The operational definition of a peanut butter sandwich might be simply the result of putting peanut butter on a slice of bread with a butter knife and laying a second equally sized slice of bread on top An operational definition defines something …
3Critical period hypothesis — The critical period hypothesis is the subject of a long standing debate in linguistics and language acquisition over the extent to which the ability to acquire language is biologically linked to age. The hypothesis claims that there is an ideal… …
4Critical Period Hypothesis — See also: Language acquisition#Critical Period hypothesis The Critical Period Hypothesis refers to a long standing debate in linguistics and language acquisition over the extent to which the ability to acquire language is biologically linked to… …
5Concept — For other uses, see Concept (disambiguation). A concept (substantive term: conception) is a cognitive unit of meaning an abstract idea or a mental symbol sometimes defined as a unit of knowledge, built from other units which act as a concept s… …
6Scientific method — …
7Metastability in the brain — In the field of computational neuroscience, the theory of metastability refers to the human brain’s ability to integrate several functional parts and to produce neural oscillations in a cooperative and coordinated manner, providing the basis for… …
8operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency. [1940 45, Amer.] * * * Application of scientific methods to management and… …
9Relativity priority dispute — Albert Einstein presented the theories of Special Relativity and General Relativity in groundbreaking publications that either contained no formal references to previous literature, or referred only to a small number of his predecessors for… …
10Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
