THE LEARNING OF VERBALLY CONDITIONED MATERIAL WAS STUDIED TO CLARIFY SOME OF THE CONDITIONS UNDER WHICH SUCH LEARNING IS ACCOMPANIED BY THE USE OF HIGHER MENTAL PROCESSES, AND THE CONDITIONS UNDER WHICH IT IS NOT. THE STARTING POINT FOR THIS RESEARCH WAS THE PREMISE THAT LEARNING IN VERBAL CONDITIONING CAN OCCUR EITHER WITH OR WITHOUT AWARENESS ON THE PART OF THE LEARNER. TO CLARIFY SOME OF THE CONDITIONS UNDER WHICH LEARNING OF VERBALLY CONDITIONED MATERIAL IS ACCOMPANIED BY THE USE OF HIGHER MENTAL PROCESSES OR NOT, THE INVESTIGATOR STUDIED THE EFFECTS OF TWO SUBJECT VARIABLES, INTELLIGENCE AND PSYCHOLOGICAL SET, AND THREE TASK VARIABLES. HE CONCLUDED THAT LEARNING CAN TAKE PLACE IN SUBJECTS OF AVERAGE INTELLIGENCE, OR BELOW, IN VERBAL CONDITIONING WITHOUT AN ACCOMPANYING AWARENESS ON THE PART OF THE LEARNER. IN ADDITION, LEARNING WITHOUT AWARENESS IN VERBAL CONDITIONING CAN ALSO TAKE PLACE IF THE SUBJECTS DO NOT HAVE A PSYCHOLOGICAL SET. FINALLY, HE CONCLUDED THAT THE FORMATION OF AWARENESS WHILE LEARNING IS RELATED TO SEVERAL ASPECTS OF THE LEARNING TASK. (GD)