The purpose of this research was to determine if training in analytic processing would increase the probability that subjects behaving impulsively prior to training would behave more reflectively following training. The study attempted to alter impulsive behavior in terms of number of errors by training identified impulsive boys to use component parts of stimuli. The pretest, a modified version of the Matching Familiar Figures (MFF), was administered to 34 second grade boys; three sets of materials were used to train these subjects in analytic relationships, detail recall, and detail matching. Results indicate that pupils classified as impulsives can, through training in analysis, be conditioned to behave more reflectively in terms of reduction of errors, and that training in analysis under conditions where time is allowed to vary does not lead to an increase in responding time. References and test figures are included. (Author/SES)