The effect of cue-criterion function form on single-cue learning.

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Abstract
Investigated the effect of the form of the function relating cues to a task criterion upon single-cue learning. There were 24 Ss in 3 groups of 8 each. 3 function forms were used, one in each condition: a J-shaped, a reversed J-shaped, and a U-shaped function form. 3 results emerged. (a) Performance gradually improved with training. (b) A U-shaped function was more difficult to learn than a reversed J-shaped function, and the latter was more difficult than a J-shaped function; this result is in agreement with the progression hypothesis. (c) The relative variances decreased as a function of training; this does not support the 2-process theory of single-cue learning, which predicts that the relative variance first decreases and then increases. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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