magnitude estimation

magnitude estimation

A method of interval scaling in which people are asked to estimate the magnitude of a subjective experience (e.g., perceived sound intensity) by assigning a number to it, in a Likert-like fashion

magnitude estimation

A psychophysical method of evaluating stimuli above threshold. The subject assigns numbers according to the apparent magnitudes of the stimuli. The results relating the magnitude of sensation S and the stimulus intensity I usually follow a power law (or Stevens' power law), that is S = kIn where k is a constant and n the exponent which depends on the sensory modality. Example: the magnitude perceived brightness of a 5 degrees target viewed by a dark adapted subject follows the relation S = kI0.33, that is, the intensity of the light target needs to be increased some tenfold to see it twice as bright. Syn. direct scaling.
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Forecast and warning systems for earthquakes and tsunamis have already been established and operated, but there is demand to improve the accuracy of epicenter analysis and magnitude estimation.
The system should employ an appropriate number and type of sensors to ensure reliable detection, location and magnitude estimation of seismic events of magnitude -1 local magnitude (ML) and above.
The shape of the response function using a magnitude estimation response methods is generally best described by a power function, R = [alpha]x[n.
To prepare a long list of appropriate modernisation projects and sub-projects that could be implemented in the oil refineries together with an order of magnitude estimation of the investment costs;
A magnitude estimation task was chosen as the means for participants to consume sugar (i.
Cognitive predictors of arithmetic in Grade 6 include language (vocabulary), line estimation, magnitude estimation (symbolic and nonsymbolic), and working memory.
Initial lightcurve analysis was performed using Astrometrica (3) by manually extracting the magnitude estimation for each image using the CMC-14 catalogue.
Other topics include the digital repetition effect in two-digit number comparison, operational momentum in numerosity production judgements of multi-digit number problems, a unified approach to single-digit and multi-digit magnitude estimation, and why seemingly logarithmic representations may rather be multi-linear.
Psychologists have used category rating and magnitude estimation approaches (Kemp, 2002).