Using multiple functions within equivalence classes to generate novel responding

The current study reports the results of an experiment that examined training of multiple functions to each of two stimuli in two 3-member equivalence classes (A1, B1, C1 and A2, B2, C2). Behaviours trained involved a “number” and “colour” component when drawing dots; at A1 draw 10 black dots, at C1 draw 1 black dot, at A2 draw 10 red dots and at C2 draw 1 red dot. In the majority of cases, the behaviours trained initially to A and C stimuli appeared in the presence of these stimuli during tests for transfer of function. For 10/12 participants who maintained this baseline responding, emergent behaviours appearing at B generally were colour appropriate for each class. The number of dots drawn varied across participants ranging from 1 to 11 dots, although numbers were consistent across trials for each participant. The results are discussed with respect to the control and predictability of novel behaviour in equivalence classes.

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