psychophysics

5.50  psychophysics. Science that deals with the quantitative relationship between physical and psychological events. Psychophysics is a branch of...

psychophysical power law

5.49  psychophysical power law; Stevens power law. Description of the relationship between stimulus magnitude and the resulting sensation magnitude. Mathematically, where Ψ is sensation magnitude, ∅ is stimulus magnitude, ∅0 is...

psychometrics

5.48  psychometrics. Measurement of psychological processes through application of mathematical and statistical techniques.

psychometric function

5.47  psychometric function. Mathematical relationship in which the independent variable is a measure of a stimulus and the dependent variable is a measure of...