nonlinear transformation

a transformation of a data set that uses a function to change the linear relationship between variables. For example, a normalizing transformation creates a new set of scores that approximate a normal distribution from the original nonnormal data set, and a logarithmic transformation may be used to convert raw data into a form that more closely matches the assumptions required in particular statistical analyses. Compare linear transformation.

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Psychology term of the day

December 23rd 2024

delta rule

the principle that the change in strength of an association during learning is a function of the difference between the maximal strength possible and the current strength of the association. The delta rule is used in associationistic learning theory (see associative learning).