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Stevens' power law is an empirical relationship in psychophysics between an increased intensity or strength in a physical stimulus and the perceived magnitude increase in the sensation created by the stimulus. It is often considered to supersede the Weber–Fechner law, which is based on a logarithmic relationship between stimulus and sensation ...
Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. [ 1 ] The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science ( physics, chemistry, astronomy, geoscience, biology ).
The Holmes and Rahe stress scale ( / reɪ /) [ 1], also known as the Social Readjustment Rating Scale, is a list of 43 stressful life events that can contribute to illness. The test works via a point accumulation score which then gives an assessment of risk. The American Institute of Stress, for instance, regards a score of 300 or more as an ...
In psychology, apperception is "the process by which new experience is assimilated to and transformed by the residuum of past experience of an individual to form a new whole". [ 2] In short, it is to perceive new experience in relation to past experience. The term is found in the early psychologies of Herbert Spencer, Hermann Lotze, and Wilhelm ...
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world. The theory of biological evolution is more than "just a theory".
Scientific evidence. Scientific evidence is evidence that serves to either support or counter a scientific theory or hypothesis, [ 1] although scientists also use evidence in other ways, such as when applying theories to practical problems. [ 2] Such evidence is expected to be empirical evidence and interpretable in accordance with the ...
Serial-position effect. Serial-position effect is the tendency of a person to recall the first and last items in a series best, and the middle items worst. [ 1] The term was coined by Hermann Ebbinghaus through studies he performed on himself, and refers to the finding that recall accuracy varies as a function of an item's position within a ...
HARKing ( hypothesizing after the results are known) is an acronym coined by social psychologist Norbert Kerr [ 1] that refers to the questionable research practice of "presenting a post hoc hypothesis in the introduction of a research report as if it were an a priori hypothesis". [ 1][ 2] Hence, a key characteristic of HARKing is that post hoc ...