Transposition in the feebleminded.

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Abstract
A group of 44 feebleminded Ss with an average MA of 7 years was trained to choose the smaller of two stimulus squares. Transposition was tested with pairs of stimuli removed 1,2, or 4 steps from the training pair. The results indicate: (1) Learning by the feeble-minded Ss was slow, and only 3 of the Ss could verbalize their basis of response. (2) The over-all incidence of transposition was significantly above chance. (3) No decrease in transposition was found on the first test trials with increasing separation of training and test stimuli, but an inverse relationship was found for learning scores on the test trials and for consistency of correct test response. The results are discussed in terms of the difference in the design of this and former experiments.